The scbo file extension is mainly related to Mac OS X (macOS) and MacBook computers and used to unlock some system files. In addition, the seller must make one of the four representations within the statute. 302- Workbench - DMY Dummy-Released the request - created the data and cofiles. SCBO file is a MacBook EFI Unlock File. The firmware in an Intel-based computer uses Extensible Firmware Interface (EFI) technology. Intel-based Macintosh computers can be protected by firmware passwords as well. Dec 18, 2019 Use SCBO unlock Apple T2 chip EFI iCloud Firmware SCBO View attachment 105405 1: Get HASH CODE View attachment 105406 Press and hold when you see the lock screen: Next: View attachment 105407 Press Simultaneously: View attachment 105409 2: Instructions for creating SCBO. SCBO Generator For EFI Unlock. We are in the final stages of developing an SCBO generator to help unlock Firmware locked macs. This generator will revolutionise the EFi unlock industry.
MacBook EFI - Lost - iCloud Lock password Unlock Any MacBook Pro or Air (2010-2017) 100% Working - Duration: 10:59. Tekkies Computer & Gadget Repair 3,699 views 10:5 how to fix a flashing folder with question mark,EFI lock and then restore on a 2012 MacBook Air - Duration: 6:06. Jfix 30,227 view Choose to turn the Firmware Password off. If none of the above methods worked, there are still two more options to try: either have Apple do it for you, so long as you have the original receipt or invoice, or alternatively use any of the EFI lock bypass hardware kits available for sale on various sites. In using one of these EFI lock hardware. DIY Repair Liquid Damage A1466 MacBook Air 13 Logic Board - No Power Efi Chip - Duration: 34:51. Fix Apple Now. iPhone, iPad & Mac Repair 591,515 view How to Unlock MacBook Pro in a fast and easy way. Usually, there are two types of lock for MacBook, PIN/Passcode or EFI firmware lock. Our post today will show you a newly launched chip free removal MacBook Pro unlock tool.It can be used to modify the serial number, reflash data of the Mother Board module and clear PIN lock
How to unlock EFI Lock/ BIOS Lock for Macbook pro 2015 /EFI BIOS UNLOCKING TOOL DS809 - Duration: 16:39. Novecel Your #1 Lcd repair solution 15,509 view Our previous EFI Chip Solution For MacBook Unlock Repair has introduced an EFI chip solution regarding the unlock MacBook issue. We have made a guide: how to bypass icloud lock on iPhone 6 no later, however, if you are not good at micro soldering, never mind, this time REWA come up with a new unlock method with EFI password removing regarding the unlock MacBook issue Remove bios password iCloud unlock for MacBook pro new models 2018 - 2017. How Remove icloud password for Apple New model A1706, A1707, A1708 EFI Password and iCloud unlock for MacBook pro. All Apple models laptop and iMac, 4-6 PIN BIOS Password Removal. this Tools is for Apple Mac EFI & iCloud 4-6 PIN This tutorial will show you how to bypass apple EFI on any Macbook Air, Macbook Pro, iMac, etc. macbook efi password removal, remove efi password macbbok, macbook, macbook pro, macbook air, imac, mac pro, mac mini, apple efi icloud bypass, ghostlyhaks, thaGH05T, how to remove efi password from pre-2011 macbooks, efi chip, efi icloud, remove efi icloud, how to, tutorial
. I have a macbook pro5,5 powered by OS X 10.11 El Capitan. In order to reset firmware password I simply removed the battery and the two bank array of ram memory, 4gb each bank I set up an EFI password with the Apple-provided utility about one year ago (or more, I was still under Snow Leopard). A few weeks later, I decided to change it, but the utility does not request the old password. So I entered a new one and thought it would be OK. A few months later, I need to boot on an external hard drive to perform a clean install of Mac OS X Lion. I start by pressing alt. There's no way to overcome an Efipassword lock without getting into low level Efi programming and you'll need appropriate hardware and knowledge. You would need investing money and unless you're skilled in firmware coding quite some time and study to understand what needs to be done. Chances to.. - MacBookPro 13 Retina Display Late 201 MacBook Air A1466 Mid 2012 EFI Password Removal Macbook Pro 15A1286 Late 2011 EFI Password Removal If You Have This Unlocks In Second's You Can Remove Password And PinLock You Can Iditfiy Your Mac Laptop Year By Serial Go Here Then Put Your Serial You 'll Get The Year Of Your MacLaptop New (Tutorial) Next Week , How To Burn Mac Os And How T
Unlock MAC EFI Icloud 4, 6 digit PIN Lock passcode How Unlock MAC EFI Icloud 4, 6 digit PIN Lock passcode. HD Box its new tool to remove EFI Lock without using sensor cable. this usb hardware tool Can remove 4 to 6 digit EFI passwords by brute force, works standalone, no computers limit. To find the 4 digits passwords it can take 1 day and 17 hours. for simple passcodes can be very easy I just wanted to ask if anybody had any experience of removing the firmware password on the new mid-2018 Macbook Pro with coffeelake arch. I believe it's model a1989 and is the 13 model. As far as I know there is no SAM connector and so I would need to physically remove the firmware chip and replace it? Thank you EFI ICLOUD BYPASS DONE RIGHT. This is a series created to help anyone interested in learning how to remove an EFI lock from any MacBook (Air, Pro, etc.). My goal is to make this as thorough and easy to understand as possible by giving you all the tools you'll need to get the job Done Right. These videos have been procured from an OS X point-of. For even more protection, you can set a firmware password. A firmware password prevents users who don't have the password from starting up from any disk other than the designated startup disk. As a result, it prevents using some startup key combinations. The following steps apply to OS X Mountain Lion or later. Turn on firmware password . Turn off firmware password. Forgot your password? How. Before anything, a little background!!! EFI (Extensible Firmware Interface) Password is one of the many security features that Apple has been shipping its intel based products with for many years now.EFI is found on products like MacBooks (Pro and Air), iMacs, Mac Minis, and Mac Pros. EFI is very similar to what is called BIOS passwords in the PC world
So I get the HDD from the Macbook Air and installed El Capitain 10.11 with a Macbook pro used the HDD as external drive with a special connector. That was a little bit tricky with the ribboncable. After I installed the drive back in the Macbook Air it boots successful. Then I open a Terminal shell and call nvram -c and set a new firmware password with firmwarepasswd and deleted it with the. . When we did the reset the firmware lock appears and we do not have the password. We took it to Apple and they tried to reset but said that we needed to contact the original owner because it is locked down. New unlocking method for MacBook 2015-2017. The REWA Technology release a video showing a new unlocking method for MacBook 2015-2017.With the help of EFI Chip Free Removal Unlock Tool, you do not need to remove the chips, and the EFI password is cleared with HEX editor. you will find out how to make your MacBook repair easier If EFI password is really unknown and you make a mistake at this point you will stumble upon the big problem. As I wrote before, 'bless' makes a record in the NVRAM. During startup EFI MUST TO FIND a bootloader or bootmanager application and if it not found Apple's EFI will show you the 'Question sign in floder icon' and no more. To fix up this. bypass efi firmware password macbook pro 2011. New release software for android device. Download and update android firmware driver latest version: Update android firmware: 02.01.2019; Country: All; Download Size: 86 MB; Current version: 6.09; Language pack: English (North America), Chinese, Germany ; Download android firmware now! Download and update android firmware for products: store fw.
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MacBook firmware : voir site Apple. Il faut à présent se rendre sur le site du support d'Apple, à la page Mises à jour du programme interne de l'EFI et du SMC sur les ordinateurs Mac à processeur Intel. Faites défiler jusqu'à trouver votre identifiant de MacBook. Nous nous rendons dans la section MacBook Pro, identifiant 11.1. Well, I got a MacBook Pro early 2011 that I bought from a friend 2 months ago. The firmware is protected by a password, and I cannot boot form my HDD. When I googled it, I found that the firmware password should be removed or reset, but I don't know how to reset it. Please help me, because I ain't got any other to work on
Bypass Macbook EFI password - YouTub
Question: Q: MacBook Pro Middle 2012 EFI Locked. Hi everyone! I just got a new macBook Pro. But the last owner reset the laptop and now at the booting, ther is a white screen and in center a flashing folder with a query.. So I restart with Option because I have OSX SIERRA on a bootable USB KEY but now way, the EFI is locked and I don't have the password.. So maybe with the original OSX DVD.
So if you have forgotten your password on iMac or Macbook, it might be a bit difficult way ahead for you to access the system again if you don't have the knowledge of the convoluted operating system. Generally, besides , Mac password is used for various other reasons, such as, during installing softwares, rendering serious changes in the system settings, or while deleting system files.
EFI firmware protection locks down newer Macs. Apple's firmware password security is greatly enhanced in recent Mac models, making it a rather robust security feature
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Bypassing EFI Lock on Your Mac - Mac Optimization Software
There's no easy way to bypass firmware password.some have reportedly successfully cleared EFI but it's a very complicated procedure requiring very deep coding knowledge and some tools such as Raspberry to interface with the chip, otherwise you may just brick the machine for good. It's possible.. - MacBook Pro 13 Unibody Mid 201 4-Digits Apple EFI Firmware Password Removal USB Tool MacBook (ProAir) iMa MacBook Pro with Retina display (all models) iMac (Mid 2011 and later) Mac mini (Mid 2011 and later) Mac Pro (Late 2013) MacBook (Retina, 12-inch, Early 2015) Only Apple Retail Stores or Apple Authorized Service Providers can unlock computers protected by a firmware password. The purpose of an EFI password is to stop you installing or editing the Mac via any startup commands. Sorry I can't do. An AASP does by no means 'bypass' the Firmware Password, it is simply removed with a tool specific for that exact machine. A specific Key combination is used on the Firmware Password screen on the Mac that needs it removed, this presents a unique Hash code on the screen of the Mac. Generally this Hash code needs to be sent to Apple Technical. A firmware password on Mac systems locks the hardware to prevent booting to alternative modes that could bypass OS X security, but in order to access some of these modes you first have to disable.
. The EFI Card fixes EFI BIOS chip or firmware corruptions and boot loops that may have caused by Clover or similar EFI bootloaders. It also removes and unlocks the Mac (2010 - 2017) EFI BIOS passwords instantly. This is just a special EFI BIOS chip which uses a special connector on the logic. Press Control-Option-Command-Shift-S to reveal a 33-digit hash (mixed letters and numbers) that contains an identifier for your specific motherboard and the Atmel chip used for your system. In this. On 2011 and earlier Macs with EFI locks: with the power off, remove a ram module and then turn on the MacBook. Immediately hold Command+Option+P+R to reset the PRAM. Reset the PRAM twice. Then once it chimes, the password should go away. It's a stupid bypass but it works. After the password goes away, turn off the Mac again and reinsert the. Replacing EFI chip on my Macbook Pro to solve my forgotten EFI password? I have a fresh harddrive i want to install because im using my original in my PC. But when i came to try and reinstall OSX by holding Option while booting, i remembered i have an EFI code and completely forgot it
mac book pro efi password reset - YouTub
The EFI Password will be set as well if owner remote lock mac via iCloud password. And this video is real, I watch a person use this tool unlock 2012 Macbook Pro in 10 seconds Let me save you a huge headache — don't set an EFI password on your Mac unless you have the original receipt for that machine. If you buy your Mac off Craigslist, like I did, and your daughter. macbook pro efi password a1286 how to remove pass. 1 - Turn off your MacBook . 2 - Remove backcover . 3 - Remove 1 RAM . 4 - Turn on your MacBook while holding OPTION + COMMAND + P + R , wait for restart , then release the keys . If you are lucky enough , EFI password will be cleared . The Following 2 Users Say Thank You to loca|host For This Useful Post: Ahmed Zitoon, tornado2008. 09-17-2013.
My original goal when I started poking around Apple's EFI implementation was to find a way to reset a MacBook's firmware password. My preliminary research found references to a magical SCBO file that could be loaded onto a USB flash drive and booted to remove the password. The normal process workflow is to first contact Apple support. Since I don't have the original sales receipt. Question: Q: How To Bypass EFI Password (PLEASE) My brother passed in January of 2013 and me and my mom went through his things again yesterday and never really seem to touch anything since he has been gone. His step mother, who is now dead bought him a 2010 macbook pro i believe and yesterday i tried to access it using things i would assume to be his code such as his birthday and birth year.
Unlock MacBook Pro Passcode or EFI with Unlocking Tool All
UNLOCK PROCESS IN 24H To unlock remove the EFI/firmware password & iCloud on newer Macs, you must now follow these steps, If they don't work, start over from the beginning and make sure you follow each one exactly. If that still doesn't work, contact us via Chat.: - Boot with Option key held to display the boot menu's firmware password prompt.- Press Control-Option-Command-Shift-S to.
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al. A new window will show up, waiting for you to enter a command. Type resetpassword as one word,.
Bypass Macbook EFI password - Duration: 15:13. Secure Info How To Remove PASSWORD on MacBook Pro 2020 | All Macs! | Unlock Passcode for Pro Air iMac Mac Pro - Duration: 5:28. GSM DIY 450,901 views. 5:28. MAC / Apple Passwort umgehen - Duration: 1:59. Reparaturmann 28,463 views. 1:59. How to bypass and remove MacBook password - Works on all Macs (READ DESCRIPTION) - Duration: 4:58.
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How To Hack Apple Mac EFI Bios Firmware Password On A MacBook Pro 2011 Recent General News Reviews Tutorials By Troy • June 14, 2019. Articles Home; More in Tutorials; Submit a Tutorial ; Followers 1. How To Hack Apple Mac EFI Bios Firmware Password On A MacBook Pro 2011. If you're reading this, I'm guessing you yourself is on a mission to remove an unknown bias password from a Macbook pro.
MacBook Pro Late 2013 EFI password. Hi, Could anyone help me to get the EFI password? Because whenn i start the Macbook it gives the folder with the questionmark and whenn i want to reinstall it it asks for the EFI password. Thanks! 12-02-2014, 11:49 #2 sharshor. Freak Poster . Join Date: Sep 2010. Posts: 248 Member: 1393470 Status: Offline. Thanks Meter: 22. Possible picture of it 12-02-2014. REMOVE FIRMWARE PASSWORD MACBOOK AIR PRO RETINA 2010-2015: remove firmware password macbook air . I have been through plenty of websites and posts where everyone said you must take your macbook air or thunderbolt mac to apple to reset the firmware password. That is not true. I am going to tell you how its done. The method is simple but can't be. Close out the Terminal window and behind it you will find the Reset Password utility. All you have to do now is select the user account you want to reset, enter a new password or leave it blank and click Save. Then just simply restart the computer from the Apple menu and with your new password. It's as easy as that Before anyone asks, NO, the machine is not stolen or other. Simply a test object given to me. This Thread is meant, for you to use your brain, not to just run your fingers over the keyboard and waste space. Late 2011 MBP 2.4GHZ i5 4GB Ram (original) 500gb hard drive HDD wiped clean. EFI. EFI BIOS firmware chip for Apple MacBook Pro Retina 15 A1398 820-3332-A. Quick delivery online download. No Shippuing needed; Should be used to repair a corrupted EFI firmware BIOS chip; Should be used to unlock EFI firmware BIOS password (It doesn't unlock the OS password) Firmware must be programmed on the logic board (requires programmer.
New tool method to remove pin code / password on new version Macbook 12″ A1534 EFI Password, iCloud unlock. what this does is reset EFI and iCloud password. the process looks very simple, It requires connecting the tool to the logic board to set to factory default, for the developer information the process takes about 15 seconds Jasa Unlock Efi Passcode Password Macbook Pro Air Retina. Apa itu Lock Efi ? Lock Efi merupakan system keamanan dari Apple khususnya untuk device Mac yang mirip seperti lock icloud di iPhone dan iDevice lainya, Lock tersebut akan mengunci device Mac dari reinstall/restore MacOS dan device sama sekali tidak bisa dipakai dan hanya dengan passcode yang sah atau apple id serta password yang . Hello, Welcome to MacUnlocked, You are buying a MacBook Password / Passcode Removal Service. We can remove all Mac - MacBook EFI Password, Firmware Password, iCloud Password System Password, if. Remote Unlock Service Unlock MacBook PRO Air IMac EFI iCloud Passcode Apple EFI Firmware Password - USB Flash Drive (optional No Shipping Laptop Needed) iCloud Unlocking, EFI PIN [Sign in to view price
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efi 2011 2012 remove firmware password macbook air or pro 2017 bios retina 15 13 reset hack icloud hardware 2015 2014 2013. Call: 718-963-3333 TEXT or WHATS APP 917-727 -7870 | Email: [email protected]. Hit enter to search or ESC to close. MACBOOK AIR EFI UNLOCK PRO SOLUTION. MACBOOK UNLOCKS. Toggle navigation **** CUSTOMER ORDER FORM **** MACBOOK AIR EFI ICLOUD REMOVAL; MACBOOK PASSWORD.
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Hello, currently trying to repair an A1278 MacBook Pro with a 820-3115-B Logic Board. The company I purchased the Logic Board from does not have the EFI password, is there any realistic way to reset it locally? I've seen a lot of random answers online for similar models, I'm just looking for a direct answer. Thanks everyone, happy holidays
Read More: How to Restore a MacBook Pro to Factory Settings. Part 4. Recover Lost Data After Resetting Mac Password. Many solutions on the internet claim that they can help you bypass and reset Mac password. However, some wrong operations will easily lead to important data loss
How to bypass reset password on any Mac computer. This tutorial is gonna help you if you have a mac pro with passcode. so you can't log into your computer or if you have just forgotten your password. it's a very simple procedure this tutorial is gonna work for Mac OSX 10.6 - 10.9 and above.This tutorial will cover lion mountain lion, Mavericks, Yosemite captain and Sierra but if you. Nota: i possessori di MacBook Pro 13 con display retina e con problemi simili di richiesta password o EFI corrotto, possono leggere un altro mio articolo: Problema accensione Apple MacBook 13 retina A1502 A1425. Inoltre se volete assistenza per questo problema sul vostro MacBook contattatemi per un preventivo! Carlo 393.593.35.22 | assistenza.
MACBOOK AIR A1466 _A1466 EMC2632_25L6406E unlock,remove Bios Password MacBook Pro 13 A1278 Intel Core i5 y i7 13 unlock,remove Bios Password MacBook Pro 2011 A1278 13 820-2936-A unlock,remove Bios Password Last edited: May 10, 2020. Administrator, Jul 8, 2017 #1. andromeda New Member. Joined: May 10, 2017 Messages: 26 Likes Received: 0. Hello i have Apple a1706 emc 3071 with bios password. Fix corrupted firmware, macOS installation, EFI BIOS chip, Solderless EFI card. Forgot your password? We can help unlock your Mac, Apple firmware unlock, iCloud unlock, DEP profile, MDM removal and more. Shipment Suspensions COVID-19 Update . Firmware unlock with EFI Card on Mac Pro 2013 100% working. No soldering needed. Firmware unlock with EFI Card on MacBook Pro 15 Touch Bar 2017 100%. Bypass pasword. Help. Ok so one day my MacBook Pro runs Out of battery (forgot to charge it). When I turned it on a white screen with a lock and a blank space showed up. I looked into it and it says it's an efi password? Something like that. The thing is, I don't remember setting up a password like that and if I did I just completely forgot what it is, can someone help me ? 0 comments. share.
How To Unlock MacBook By Removing EFI Password? - REW
It's because the Mac EFI or Extensible Firmware Interface (similar to a PC's BIOS) let devices plugged in over Thunderbolt to access memory without enabling DMA protections, which allows Thunderbolt devices to read and write memory. Secondly, the password to the FileVault encrypted disk is stored in clear text in memory, even when the computer is in sleep mode or locked. When the computer. Apple MacBookEFIPassword Removal, Chattanooga, Tennessee. 455 likes · 1 was here. We offer Apple iMac, Macbook, and other system unlock services along with general logicboard repairs in our. How to bypass and remove MacBook password - Works on all Macs (READ DESCRIPTION) - Duration: 4:58. Informed Everyday 381,340 views. 4:58. Apple Macbook pro/air EFI password/passLock removal in 5 minutes - Duration: 5:30. BuySellRepairs.com 98,765 views. 5:30. iUnlockEFI MacBook Pro A1278 MB: 820-2936-B - Duration: 18:34.
EFI Firmware and iCloud Password Unlock Service | iUnlockEFI. Concernedrabid. Follow. 5 years ago | 109 views. EFI Firmware and iCloud Password Unlock Service | iUnlockEFI. Report. Browse more videos. Playing next. 3:55. With this blog we will share an EFI chip solution regarding to the MacBook unlock issue. please stay tuned for the next two chapters of MacBook unlock. EFI Chip Solution For MacBook Unlock Repair. The MacBook Pro requires PIN to . Give the PIN a try, yet PIN failed. Power off. Then hold Option Key and power on. Another LOCK appears on the.
Video: Reset Efi Password on Macbook Pro. Desktop computers with a T2 processor. Turn off your Mac, then unplug the power cord. Wait 15 seconds, then plug the power cord back in. Wait 5 seconds, then press power button, to turn on your Mac. Reset SMC on other computers. If your Mac is not equipped with an Apple T2 Security Chip processor, follow these steps: Laptops with a non-removable. With just one tool, you can unlock the following MacBook series. MacBook Pro 2010-2017, MacBook. Air 2010-2017, MacBook 2015-2017, iMac 2010-2016, and MAC mini 2010-2016. Let's check the video to see how to bypass MacBook . with our new MacBook unlocking tool. Tools Used: Unlock MacBook PIN & EFI with Exclusive Unlocking Tool-DS-80 RESET EVERY MACBOOK EFI PASSWORD WORKS ON RETINA AIR PRO A1278 RESET EVERY MACBOOK EFI PASSWORD WORKS ON RETINA AIR PRO A1278 A1286 A1425 A1398 A1502 IMAC MAC MINI: pin. Macbook Pro or Air EFI unlock | Home | San Diego Electronics If your Macbook displays a padlock or asking for a pin/password or has access to guest account only, we will unlock Instant and permanent but requires : pin. MACBOOK.
How to remove bios password iCloud unlock for MacBook pro
EFI Card Instant (Solderless EFI Chip) for MacBook, MacBook Pro, MacBook Air, Mac mini and Mac Pro. Rated 5.00 out of 5 £ 70.00 £ 49.99; Save 6% EFI BIOS firmware chip for any MacBook Pro, Air, iMac, Mac mini 2009-2017. Rated 4.67 out of 5 £ 11.40 - £ 29.99; Save 24% EFI chip adapter for WSON8(8×6, 6×5), WLCSP, SOIC8, to DIP8 £ 25.00 £ 19.00; Save 26% EFI BIOS SOIC clip for MacBook. How to bypass 4 digits lock code on MacBook. if you have a locked icloud iMac, MacBook, mac pro locked on passcode screen here is a solution for free. this solution is based on Mount the locked drive on another machine or in an HD external cage, find the PIN inside icloud folder , re-install the locked drive into the original Mac, enter the PIN, all working again
How To Hack Apple EFI - Ghostlyhak
Macbook Pro -- iMac 1) Add or remove a stick of ram. Obviously if you have one stick in, add one and if you have two in remove one. 2) Power on the mac and immediately press and hold command-option-P-R. ( only 1 chance, if failed need to remove / add ram before next attempt
Remove macbook pro efi password air retina imac a1278 a1286 a1425 - 305 Roebling st, Brooklyn 11211 - Note de 4.9 sur la base de 9 avis «Could not.
Solusi untuk Macbook air pro retina Efi bios password unlock reset servis: 1. Cabut chipset bios macbook dari logicboard dan reprogram melalui chipset programmer seperti yg kita pakai di sekolah dengan data model macbook yg benar 2. Check model macbook yg bisa di dapatkan dengan mencari tahun keluar dan cpu maka anda bisa mendapatkan model macbook seperti MD101xx/A 3. Flash chipset bios.
i, MacBook and Mac Pro (2010 - 2017) within around 15 seconds. The package includes: 1x Unlocker device (EFI BIOS Master) 1x SOIC8 clip with.
Macbook pro early 2011 efi password. Hi to all, i need your help, i have one macbook pro with a efi password in search from i have fond the procedure is only with the SCBO file in usb driver for unlock the password or rewriting the firmware in efi chip, i need one person to sell the SCBO file or the firmware for i rewrite in efi chip. 03-30-2013, 20:36 #2 remzibi. Junior Member . Join Date.
hi, i have a macbook pro 13 a1278, i don't have efi password , just have user password and i would like to clear all . how does it do? thank you 11-30-2013, 10:21 #24.
Click Login Optionsfrom the left pane, and you can see the Automatic option. Turn it on if you really want to automatically to Mac without password. 2-1 Click the option and select a user from list. 2-2 Then type the user password in pop-up dialog
We suggest after you unlock the MacBook Pro with our LCD EFI Unlocker you back up the bios chip with this device. This is useful when one day another locked MacBook. Unlock ICloud 4 digit Macbook Pro Teensy 3.1 From some time we know it is possible to bypass the 4 digits code on iMacs, mac air and MacBook pro using a version Arduino . using the Teensy Arduino. this device allow use brute force to run all possible combinations numbers between 0000 and 9999 .
Bypass Mac Firmware Password - OS X Dail
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It works on MacBooks, MacBook Airs, MacBook Pro's and iMacs, and is compatible with all current models of Macs. It uses a brute-force method trying all possible PINs. This method is non-invasive, meaning your Mac does not have to be taken apart or opened. Use of the EFI PIN BLASTER does not void your Mac's warranty Well, there are workarounds to bypass Mac password. In this post, we have discussed two methods which could work to unlock Mac without password, one when you have the access and other when you have forgotten your Mac password. Condition 1: User Can Still Access Mac. If you can access your Mac, then you can activate automatic for any of the user accounts for Mac. To do that, follow. Macbook Pro 2015 Efi Password Problem Smooth kick done Dealers are very much welcome APOLTECH REPAIR & SERVICES Phone Repair Services ⚠️ Due to Covid-19 We officially close our Physical. MacBook Pro 13 05/2020: 1499 € Le MacBook Pro 13 a été mis à jour le 04 mai 2020 avec les nouveaux claviers Magic Keyboard (enfin fiables) et des puces de 10e génération sur le haut de. Macbook EFI Password Passcode Icloud all Lock reset by SCBO unlock file - How to prepare unlock usb stick. After the unlock SCBO file is received from US, follow these instructions to prepare the unlock USB stick. You will need a MAC PC and a USB memory stick Apple MacBook Pro Air iMac Unlock EFI iCloud Password Removal USB Device. we can usually can send you the unlock SCBO file within 48. Encuentra Unlock Efi Macbook - Computación en Mercado Libre México. Descubre la mejor forma de comprar online
My original goal when I started poking around Apple’s EFI implementation was to find a way to reset a MacBook’s firmware password. My preliminary research found references to a “magical” SCBO file that could be loaded onto a USB flash drive and booted to remove the password. The normal process workflow is to first contact Apple support. Since I don’t have the original sales receipt of this specific Mac, I assume this option isn’t possible, since anyone with a stolen Mac could get the password reset. Things got more interesting when I found a website that allegedly sold the SCBO files – just send them the necessary hash (more on this later), pay USD100, and get a working SCBO file in return. There are videos (in Portuguese but you can watch the whole process) of people claiming this works, and even some claims about an universal SCBO that unlocks multiple Macs.
Since there was (stil holds true) virtually no information about the SCBO contents, this aroused my curiosity but I never followed up until now. Upon my return from SyScan360 Singapore, I needed a new research direction to kickstart my brain back into work, and this fit the bill.
The core question I wanted to answer was if it was really possible for someone to build a SCBO file key generator. If this were true, it would imply that Apple’s EFI contains a significant vulnerability. Understanding how SCBO files work in the first place was also intriguing. So let’s start another EFI reversing engineering adventure…
At the time I could only find a single SCBO file on the Internet, which is bad (impossible to visualise differences between files) but better than no file at all. The sample file can be downloaded here SCBO_original.zip. (SHA256(SCBO_original)= fad3ea1c8ffa710c243957cc834ac1427af0ea19503d9fc7839626f6cac4398b)
This picture shows us the full contents of the sample file. The SCBO string is clearly visible in the first four bytes, which is a magic number (0x4F424353). A couple of bytes later and we see another string. It appears to be some kind of serial number. This information can be verified because part of this string can be found in the motherboard of each Mac (my sample is only composed of MacBooks but I guess iMacs and others will contain the same information). The rest of the string and binary data that follows are unknown for now. The total file length is 324 bytes.
How are the SCBO files generated?
As previously mentioned, Apple support is able to generate these files after you provide some key information. To obtain the necessary information, you must hold SHIFT + CONTROL + OPTION + COMMAND + S on the firmware password prompt screen and a string will be generated. This is the string Apple support needs, and this is the same string we see inside the SCBO file. The first digits are the machine serialnumber as previously described, and the last sixteen digits are a nonce value regenerated every time the firmware password is set, removed, or modified. I know this because I had already reversed Apple’s Firmware Password Utility and observed its communications with the kernel extensions that set the EFI NVRAM variables.
Now that we know a bit more about its contents, can the sample SCBO be modified and reused to reset any other Mac’s firmware password? The answer is no. If we set a firmware password on a test Mac, generate the necessary string, and modify the SCBO accordingly, nothing will happen. The computer will process the file and reset the system, but the password isn’t reset. This provides us with another bit of information – that there is some kind of integrity check on the SCBO contents. It would be a surprise if this kind of check wasn’t implemented and anyone could modify the SCBO contents. So if this is true then how is someone selling what appear to be fully working SCBO files? We need to dig deeper and reverse the EFI code responsible for processing this file.
And now let’s start the real reverse engineering fun!
The first thing we need to do is to extract all the EFI binaries either from a flash chip dump that holds EFI contents or from a SCAP file found in EFI updates (for unknown reasons the fd format is also used for some Macs).I maintain an up-to-date Apple firmware update repository, which you can use to easily download EFI updates or verify the contents of your EFI flash if you fear nation states are attacking you. The great UEFITool can easily extract contents from dumps and SCAP (to mass extract all the files use UEFIExtract utility instead). You will need UEFITool’s new_engine branch if you want support for NVRAM partition contents (which is super useful feature, thanks Nikolaj!).
The target Mac used on this post is a MacBook Pro 8,2 and the files were all extracted from this firmware update file, MBP81_0047_2CB_LOCKED.scap. You can use other firmware files – the GUIDs will still be the same but addresses and some content might differ.With the payload extracted we can finally try to find where to start reversing. The initial best clue is the magic value from the SCBO file, since it should be checked somewhere in the code. My favorite tool for this type of task is bgrep aka binary grep. It allows us to grep files for specific byte sequences, an extremely useful feature to locate binary data. The bytes we want to grep for are 5343424F, the SCBO magic value. If you want to grep for strings please remember that most strings in EFI binaries are Unicode (two bytes wide). There is only a single hit, a DXE phase binary with GUID 9EBA2D25-BBE3-4AC2-A2C6-C87F44A1278C. In (U)EFI world there are no filenames, everything is referenced by a 128 bits GUID.
It is time to load the binary into a disassembler and try to understand what is happening. We can observe the magic bytes being tested in the following piece of code:
This means that we have a good entrypoint into this problem and now need to reverse backwards to understand what this function is trying to accomplish and how is it called.
What is the procedure to use the SCBO file?
To assist our reversing engineering effort it is important to collect as much data as possible about our target works. The following describes how to use the SCBO file to reset the firmware password:
Format a Flash drive GUID partition scheme and Mac OS Extended format. Name it Firmware (note: doesn’t really need to be Firmware!).
Drag the binary file named “SCBO” to your Desktop.
Open Terminal.
Execute this command in Terminal: cp ~/Desktop/SCBO /Volumes/Firmware/.SCBO You should get a new line, no errors.
Execute this command in Terminal: cp ~/Desktop/SCBO /Volumes/Firmware/._SCBO You should get a new line, no errors.
Eject the Flash drive.
Turn off the customer’s computer.
Insert the Flash drive into the customer’s computer.
Turn on the customer’s computer while pressing and holding the Option key.
You should see the lock symbol for a moment, and then the computer should restart to the Startup Manager.
This gives us important clues to what we should be looking for – code that has access to the filesystem and reads one of these two files. If we look at the strings of current disassembled binary we can see we are on the right track.
The .SCBO filename that is copied into the flash drive is referenced in the strings, althought IDA is unable to find any string references to it (IDA bug? most probably!).
Reversing (U)EFI binaries is quite annoying because every external function is a function pointer, so the disassembly output is not very clear and needs some assistance to improve it. Snare created ida-efiutils, a set of scripts that improve the disassembly output by trying to rename function pointers, offsets, and structures. Because I wanted a couple of more features than it provides and I’m not a Python fan I ended up creating my own IDA C plugin for this task called EFISwissKnife.
It does extra things like commenting the known functions with their prototype and documentation, generate some statistics, and extract information about installed and used protocols into a database. This makes it very easy to find out which binaries are installing and using a certain protocol, avoiding tons of binary grep’ing and wasted time finding which module implements a protocol. The next picture shows the start() function as IDA disassembles without any plugin help.
And here we can see the result after running EFISwissKnife.
In this case it was able to identify two (U)EFI Boot services being called, SetWatchdogTimer and LocateProtocol, and also comment the GUID used by LocateProtocol. The statistics feature gives us some information about the GUIDs we were able to locate in this binary and which (U)EFI RunTime and Boot services are used. This is very useful information to have a quick idea of what the binary is doing.
With improved disassembly output we can proceed to try to understand what happens with the SCBO file.Because reverse engineering is more of an art and less of a science, I’ll start by telling you what happens and then walk you through how it happens.
What happens is that an event notification is installed by this EFI binary. When a USB flash drive is inserted, it triggers the notification and a callback is executed. One of the callback tasks is to try to read the SCBO file from the flash drive and verify if its format is correct (checking the magic number, etc). If the SCBO contents appear correct then a new EFI NVRAM variable will be set, .SCBO_0000 using GUID 5D62B28D-6ED2-40B4-A560-6CD79B93D366. This GUID can also be found in the Firmware Password Utility. This GUID is not unique to this variable and it is used for other variables, e.g. FWAppCmd. The variable can be observed in NVRAM when a new password is set, changed, or removed by Firmware Password Utility. If the .SCBO_0000 variable is set succcessfully then the system will be reset via ResetSystem service.
Scbo Mac Unlock Key
The event notification code can be found at start(). The following code snippet is responsible for creating the event:
The most interesting thing in this code is the third parameter to CreateEvent service, NotifyFunction. This is the callback that gets executed when the event triggers. The code that follows merely registers the event, in this case a file system related event.
Now let’s start looking at the callback code. The first interesting detail is that it tries to locate a new protocol with GUID 75FAB4B4-6AC1-429A-A000-6B0B95E71CA1. This protocol is installed by EFI binary with GUID 818544B5-1B9D-4E7B-8F7D-835AAEAF3B5C. The code continues and we finally reach the interesting code snippet that handles reading the SCBO file contents (I renamed the original function to read_scbo_file_contents).
Inside this function we can observe certain file operations.
The code above is responsible for opening the USB flash drive volume so it can read its contents. In this particular case we need to check the layout of the EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID protocol so we understand what each function pointer of the protocol is doing. Usually I grep EDK2 sources to find the protocols, even if the EDK2 specification is more advanced than Apple’s EFI fork (the AMIBios source leak is also a good place to search, in particular code that is outside of EDK2 such as power management). The following snippet shows the EFI_SIMPLE_FILE_SYSTEM_PROTOCOL structure:
This protocol contains a single function, OpenVolume. It is interesting to read its description to understand what will happen if it executes successfully.
The OpenVolume function will open the root directory of a volume (the USB flash drive in our case) and return a EFI_FILE_PROTOCOL handle. We need to look at another protocol to understand its features. While reversing (U)EFI we are constantly grep’ing the sources to find information about many kinds of protocols and functions. There are no man pages to save us!
We can observe that EFI_FILE_PROTOCOL supports the basic functions we need to read and write files on a filesystem. The staggering amount of protocols are a bit annoying to the reverser, but after a while we start appreciating some elegant parts of (U)EFI’s design.
The previously posted disassembly snippet first tries to open the root volume, and if it succeeds uses the returned handle to try to open the .SCBO file from the USB flash drive volume. If it manages to open the file, it uses the GetInfo function from the EFI_FILE_PROTOCOL to find the file size, then allocate the necessary memory, and finally read its contents into the allocated buffer.
The file is read in two steps, first 12 bytes, which is the size of SCBO header. If the header contents appear correct then the remaining is read.
We can observe in the above code snippet the first 12 bytes being read, and then the verification of header structure. The SCBO file supports multiple units of data, meaning that a single USB flash drive could potentially reset the password of more than one Mac. This may be pretty useful for a system administrator that has to reset many Macs. This could explain the rumored “universal” reset SCBO, which could be a file with multiple units – this is just pure speculation since that file isn’t public. The rest of the function resets the file position back to the beginning and reads the whole SCBO contents into a previously allocated memory buffer.
If the SCBO contents were read successfully, the next step is to call a function from another protocol that will verify if the Mac’s serial number and current nonce match the contents of the SCBO file. Remember that the nonce is rotated every time the firmware password is modified.
If the serial and nonce are confirmed to be correct, then a new variable named .SCBO_0000 will be set in the EFI NVRAM area and the system will be reset if there are no more units to process in the SCBO file. The new variable contains all the SCBO data minus the 12 bytes header: 312 bytes total length.
Now we understand a bit more how the SCBO feature works. If the SCBO file contents match the current Mac, a new variable is set and the computer is rebooted before any other operations. This means that there will be another EFI binary reading and processing the new variable. The current binary is only responsible for reading the SCBO file and doing basic integrity verification but it has no capabilities to remove the firmware password. This feature is reserved to the 818544B5-1B9D-4E7B-8F7D-835AAEAF3B5C binary.
The .SCBO_0000 variable can be seen in the following firmware dump. If you look at the body size of this variable it’s 312 bytes, the expected value.
This ends the reversing process regarding 9EBA2D25-BBE3-4AC2-A2C6-C87F44A1278C binary. We now know what it does and we can move to the really interesting binary.
Before starting to reverse the new binary let’s first understand how the firmware password feature is implemented. Two years ago I reversed the Firmware Password Utility and built a small EFI password bruteforcer based on that work. My work helped me determine that the EFI variable that contains the firmware password information is CBF2CC32. The password is stored as a Message Autentication Code (MAC) using SHA256, with a variable number of rounds. Bruteforcing the firmware password is useless for any password longer than four digits, since the high number of rounds makes it impossible within a reasonable time frame. The following structure can describe the variable contents:
Given this structure a bruteforce utility just needs to retrieve this information via IOKit and start bruteforcing until the password matches the current hash. This takes a couple of minutes for a four digits password.
Let’s take a quick look at the main() function of the new EFI binary we want to reverse.
The main() function is pretty simple. First we have the usual storage of BootServices and RunTimeServices table pointers in local variables, then a call to a function, and last the installation of the protocol that is called from the first EFI binary we reversed.
The installed protocol is composed of seven function pointers. The function called from the first binary is at offset 0x18, sub_10000828. It is interesting to verify which EFI binaries are calling this protocol. This is very easy with EFISwissKnife database:
The first column contains the GUID of EFI binaries that are using this protocol. The binary that is involved in EFI firmware password verification is 2D61B52A-69EF-497D-8317-5574AEC89BE4. This binary installs another protocol that is called from some other binary – probably the binary that deals with the user input and screen drawing, which I was unable to pinpoint.
If you try to patch this function to always return zero, pack it again into a firmware dump, and reflash it, then any firmware password will be accepted. This means we are on the right track. Now I’m just rewriting the story, because what I initially did before starting to reverse everything was to use Trammell’s infinite loop trick on each function of 75FAB4B4-6AC1-429A-A000-6B0B95E71CA1 protocol, and after finding the interesting ones I patched them to return zero and found out which function verifies the password, the first one from the protocol.
The sub_10000704 protocol function will retrieve the CBF2CC32 variable, generate the hash from the user-inserted password and compare with the information in the variable. SHA1, SHA256 and SHA512 constants can be found at the 818544B5-1B9D-4E7B-8F7D-835AAEAF3B5C binary.
If you have a SPI flasher and want to remove an Apple EFI firmware password, what you need to do is to dump the flash contents, remove the CBF2CC32 variable (you just need to flip a single bit on its name for example), and reflash the modified firmware. Or just locate the variable and erase or modify it directly without reflashing the whole contents. There is also another way to do this. The 3E6D568B variable is special because if you remove it, the NVRAM will be reset to a default state where the firmware password is not set anymore.
So there you go: you don’t need to search any more web forums and buy some overpriced EFI password reset hardware. You only need a SPI flasher and a SOIC clip and you can do it yourself.
If you look at all the remaining functions from this 75FAB4B4-6AC1-429A-A000-6B0B95E71CA1 protocol there is nothing related to SCBO except the one called by the 9EBA2D25-BBE3-4AC2-A2C6-C87F44A1278C binary that just verifies if the SCBO serial and nonce match the current Mac (Picture 15, offset 0x18, sub_10000828). This means that the .SCBO_0000 variable is being processed somewhere else. The answer is the sub_10000314 function called in main() (Picture 18). This is the function that will process the variable and reset the NVRAM in case there is a problem with 3E6D568B variable as I just mentioned.
Here at the beginning of sub_10000314 function the variable 3E6D568B is retrieved from the NVRAM and if doesn’t exist the code flow will be redirected to address 0x100003CD.
The code that starts at address 0x100003CD in the above screenshot deletes a couple of variables, including CBF2CC32 (the first one being cleared), and creates 3E6D568B again so the Mac doesn’t get stuck in a loop of doom. I labelled the function zero_EFI_variable but what it does is delete the variable by setting the DataSize parameter to zero. From (U)EFI documentation “a size of zero causes the variable to be deleted”.
The next problem is how to track the code that processes the SCBO variable? The best video chat app for mac.
Static analysis is not always easy on (U)EFI binaries because we have very limited ways to test hypothesis – each reflash takes around 5 to 8 mins if we want to patch code and see what happens. We also don’t have easy access to debuggers – JTAG debuggers for (U)EFI are expensive – some cost 6k USD or more. I already had reversed many parts of this large function and other functions it calls, but I was still having trouble finding the code that processes the SCBO variable contents, and I didn’t want to really reverse everything and/or keep using the slow patch and reflash method.
This is when I had an idea! How about creating an EFI emulator and debugger using the Unicorn Engine framework? I had a feeling this wouldn’t be extremely hard and time consuming because the EFI environment is self contained – for example no linkers and syscalls to emulate. I also knew that this binary was more or less isolated, only using a few Boot and RunTime services and very few external protocols. Since the total number of Boot and RunTime services are very small this meant that there wasn’t a lot of code to be emulated.
And with a couple of days work the EFI DXE Emulator was born. To my surprise I was finally able to run and debug an EFI binary in userland, speeding the reverse engineering process up immensely and quickly providing insight to previously tricky code.
I gave it a gdbinit-style UX and emulated some basic commands such as add breakpoints, step in and step out of calls, dump memory, set memory and registers, making it a very basic but extremely useful EFI debugger. It has some limitations (can’t change directly RIP or EFLAGS registers) due to Unicorn/QEMU JIT design but it is definitely usable for basic tasks. I emulated the core Boot and RunTime services such as get and set variables, NVRAM area, allocate/copy/set memory, load additional images and install/locate new protocols. While far from feature and emulation complete this is a pretty useful tool that was a critical development on this and future (U)EFI projects.
Once again let’s do this backwards and start with the conclusions. After I finished reversing this function I finally understood the SCBO feature. First the SCBO file structure can be described by the following data structures:
The unknown binary data we initially saw is nothing but a 2048 bit RSA signature. Unless someone got hold of Apple’s private keys, there is no possibility of building a SCBO key generator. So what is happening with all those videos and people claiming they were able to buy SCBO files from websites? My bet is that these guys somehow are able to submit illegitimate requests to Apple’s support system and then sell the SCBO files they receive for some nice fat profit. These could be insiders working at Apple support centers or even Apple itself. Only Apple has a real chance to investigate and track the source of these files. Another alternative is that there is a vulnerability I wasn’t yet able to find. The code and design appear solid and I saw no obvious vulnerabilities.
To verify this hypothesis outside EFI code I adapted some code I previously used to verify the signatures of SCAP firmware updates and voila, I was finally able to verify that the SCBO file I had was indeed a valid SCBO file signed by Apple and it wasn’t possible to modify it to run on other machines unless I patched some firmware code (which is useless since if you can patch firmware code, it would be easier to just reset the variables).
The core function that deals with SCBO contents is sub_100021F0. One of the first things it does is to allocate a 0x110 (272) bytes buffer to hold Apple’s public keys.
The buffer has the following data structure:
The function at address 0x1000128C will be responsible for retrieving Apple’s public keys from the EFI “file system”. The firmware contains five different 2048 bits public keys. They can be found on EFI file B2CB10B1-714A-4E0C-9ED3-35688B2C99F0.
Each raw file is 276 bytes meaning that the first 20 bytes are just some meaningless header. We just need to remove those 20 bytes and we get the 256-byte public key. One important detail described by Trammell Hudson in his Thunderstrike presentation is that the key bytes are inverted. If we want to use this public key in our own utilities, we need to reverse its bytes. Once again the keys aren’t directly extracted by a function – there is as usual a protocol that implements this feature. This protocol has GUID AC5E4829-A8FD-440B-AF33-9FFE013B12D8, and is installed by binary 8B24E4D4-C84C-4FFC-81E5-D3EACC3F08DD. There is no point in reversing the whole protocol; I saw that it was retrieving the Apple public keys and that’s it. To avoid emulating filesystem-related operations I simply enabled a Unicorn code hook and injected the correct public key. The public key used to verify the SCBO signature is the third one on Picture 33, with a SHA256 of 94218318fe5aaada2889bbd5f9789cf4afa15bd6eb7654ad66f1f199cf70f8ad (for the whole raw file as extracted by UEFITool).
Another 32-byte buffer will be allocated to hold a SHA256 hash. We will see later on that this buffer will hold the checksum of the first 56 bytes of the SCBO variable. Next is the extraction of the serial number from physical memory at address 0x0FFFFFF08. If you boot a Linux installation and use CHIPSEC to read the physical memory you are able to read the Mac’s individual serial number (on older macOS versions you could also use AppleHWAccess.kext or DirectHW.kext to read the memory but they are now blacklisted on El Capitan and Sierra).
The current nonce on variable BC9772C5 is extracted next. The goal is to build the same serial+nonce string that is found in the SCBO.
We can observe this in the debugger, before the call to the function that does the printf and after the call.
This generated string will be used to replace the serial+nonce that exists in the SCBO buffer. The signature verification code will use the current values from the Mac instead of the values in the SCBO file.
Right after this we have the hashing of 56 bytes from the SCBO contents, field1, field2, and serial+nonce from SCBO_CONTENTS structure described before.
We can observe the result in the debugger. If we extract the contents from the SCBO file and hash them they should match, meaning that we are on the right track.
The final step is to verify the RSA signature to guarantee that the serial+nonce wasn’t tampered with.
Because there are more than one Apple public key we can see a loop, meaning that the signature will be verified against all Apple keys found in the firmware “filesystem”. If one returns a valid result then the password will be removed by clearing the CBF2CC32 from NVRAM.
The DataSize parameter (R9 register at address 0x100024F8) is zero so the variable will be deleted from NVRAM. This code once again shows that the EFI password feature is definitely implemented via the CBF2CC32 NVRAM variable.
And that’s it. The SCBO mystery is finally solved and its format understood. With the precious assistance of my EFI DXE emulator and debugger I sped up the reverse engineering effort. The SCBO feature design is robust, and the only mystery I haven’t solved right now is how someone is apparently selling working SCBO files on the Internet. My bet is on insider access to Apple systems via Apple Support centers or something like that, but once again only Apple can really investigate the root cause.
If you lost your firmware password you can now reset it yourself as long the SPI flash chip is not the new BGA type (newer Macs are using them but there is a sneaky debug port that can be used for this same purpose!). You just need a device to dump the flash chip, remove the variable and reflash the modified version, or directly remove the variable (I always prefer to full dump and reflash). Of course this information can be used by thieves selling stolen Macs, but given that there are already defeat devices being sold all over the web, this post does not reveal any previously-unknown secrets.
I hope you enjoyed this post, and I also hope you are now interested in (U)EFI reversing. It’s not as easy as userland or kernel reversing due to the lack of debuggers, but with some extra work those difficulties can be solved. For the moment I am not going to release the code for my EFI emulator. I am fed up with people stealing my code without giving proper attribution; recently I discovered a couple of cases of stolen code and even modified credits. It is really annoying when I demand nothing but credits and code licensing is pretty much liberal.
Have fun, fG!
P.S.: Thanks to Jeffrey Czerniak (@geekable) for pre-publication editing.
Update 1: Biases are part of being Human and knowing them doesn’t make you immune. Since I was looking for an excuse to use Unicorn I didn’t even bother to search for EFI emulators, which was good since it was heaps of fun to write my own and dominate Unicorn engine, something that will be very useful for other projects.EDK2 has an emulator package (blog entry on how to install it), and there is also efiperun project here. I would expect them to run with Apple EFI binaries since basic services are the same. Need to give it a try. If you do that before me please update me how it went.
Scbo Mac Unlock Iphone
Update 2: Where I refer to machine serial number I am talking about the motherboard’s serial number and not the one outside on the back. You have to open the Mac to access it.
Scbo Mac Unlock Free
Update 3: If you bothered to read this from start to end you would understand that there is no way for an outsider to generate the codes to reset your Mac firmware. So please stop sending me emails and comments asking for it.