How to bypass efi password on macbook pro 66 MacBook Pro, and partly by luck, I finally got the EFI PW to reset. Also I know another trick in macbook pro which is done by remove RAM but since RAM is integrated onboard in this mac its not gonna work too. 53K subscribers Subscribe Subscribed Oct 28, 2025 · To ensure the security of managed computers, you can use a policy to set or remove an Open Firmware/EFI password. After EFI is removed use your own bootable OS X and install it. Enter the password you used. Apr 14, 2015 · Apple will certainly refuse service if anyone other than Apple or an authorized Apple repair facility tampers with it. 1 S/N : G2****V13 SMC Version: 1. Power off your Mac: Start by shutting down your Mac completely. When the utilities window appears, click Utilities in the menu bar, then choose How to remove bios password for Apple New model A1502 EFI Password, iCloud unlock Apple 1502 – 820-4924-A unlock bios password Apple A1150 820-1881-A 25VF016B unlock bios password Apple a1181 Improved video about removing Apple FW passwords. 4K subscribers Subscribe Jul 15, 2022 · Re: Macbook M1 bypass FMM / EFI Unlock I have tried moving forward with safari explorer, but to no avail. Sep 19, 2024 · Intel Mac owners can set a firmware password, which prevents a volume other than the one set to start up the Mac from being used on restart or from a cold start. Jun 27, 2022 · I’m trying to unlock an EFI password on a 2017 MacBook Pro model A1708 EMC 3164 but didn’t get a specific professional tool yet as it’s my first Apr 22, 2024 · Learn how to remove a firmware password from your Mac using step-by-step instructions. Feb 3, 2022 · Get the firmware password from the people who sold you the Mac. In this blog post, we will explore various methods to bypass the EFI password on a MacBook Pro, allowing you to regain access to your device. The Terminal command you need to look at is firmwarepasswd. If you are a small business or education institution that is relying on the firmware password but does not have Activation Lock enabled. It’s possible - MacBook Pro 13" Unibody Mid 2012 EFI PASSWORD REMOVAL 2015 MacBook Air (All Models) Macbook Pro (All Models) Use the new Firmware Password Reset scheme: Start up the computer to the password entry screen by pressing and holding How to Unlock EFI (BIOS Password) for Macbook Air 2017 (A1466)Prep:Hot air gunSolderIC programmer (RT809F or CH341A)150mil SOP8 Socket or IC mounting PCBpent How to Unlock EFI (BIOS Password) for Macbook Air 2017 (A1466)Prep:Hot air gunSolderIC programmer (RT809F or CH341A)150mil SOP8 Socket or IC mounting PCBpent Nov 15, 2021 · EFI locked randomly Hey everybody so i was using my macbook the other day, (keep in mind that im the only one who uses it) then it randomly locked the efi the next day! I dont remember setting up a firmware password and since it was originally my dads he didnt know either. Unlocking efi without soldring,Bios pass This process is for only those has their Own MacBook iCloud Lock/EFI issue or who forgot the details of their own device and lost the access or don't have access to the recovery options anymore. 15" Touchbar dead. First installation don't do over WiFi, no refund in case re-lock (re-lock could happen in some cases). Improve MacBook repair process. Jul 20, 2022 · Greetings suddala144, If you are wanting to remove a firmware password you have set on your Mac, follow the guidance found here: Set a firmware password on your Mac - Apple Support How to turn off a firmware password Start up from macOS Recovery. 9K subscribers Subscribed MacBook EFI - Lost - iCloud Lock password Unlock Any MacBook Pro or Air (2010-2017) 100% Working - Duration: 10:59. What can I do to reset the password? Carrier Lock: iPhone Passcode Lock: iPhone EFI Lock: MacBook, Mac Mini, iMac System PIN Lock: MacBook, Mac Mini, iMac Useful: Force Restart on iPhone or iPad Recovery Mode on iPhone Jailbreak iOS: Windows Bypass MDM: macOS Ventura Restore Mac: Apple Configurator DFU Mode: Mac Tools for unlocking Mac Computers. This feature requires a Mac with an Intel processor. Newer Macbooks are failing everyday. How to remove Apple Mackbook air/ pro and Imac EFI Password remove without soldring, Using CH341A tool. I have looked into this but turned up with nothing. I tried everything to bypass is but nothing worked, not even recovery Mac EFI Toolkit is an Open Source app designed to assist in repairing Mac BIOS/UEFI and more. Nov 7, 2020 · How to unlock EFI Lock for Macbook 2018 2019 2020 Laptop repair 23. Now you'll need to run it with the flag -delete but you'll be prompted in the Terminal for a password and can't pass the value of this in the script. Jun 21, 2022 · Soldering a new preprogrammed Efi IC, which you could find for sale at some eBay sellers, would be the cheapest alternative. 2017 macbook pro A1708 EFI Password removal / QFN Chip programming TL866II Plus done Mac iCloud T2 bypassMac MDM M1/T2 bypassEFI firmware 2008/2017 Password Jun 25, 2017 · how to remove or bypass EFI password in early 2015 macbook pro Dec 13, 2023 · Discover a new method to unlock MacBook 2015-2017 without removing chips. Clear EFI password using EFI Chip Free Removal Unlock Tool. 2. Jun 20, 2025 · Video Overview Step 1 Activation Lock T203 includes two tools: T203 USB flash drive and T203 ROM seat. T203 is mainly used to remove the EFI lock, pin code lock, and bypass the iCloud activation lock of 2018-2020 MacBook with the T2 chip. In this article, we'll examine six tried-and-true methods on how to unlock MacBook Pro without password. During startup, you will be prompted to enter the firmware password. Mar 16, 2021 · If you use the firmware password to protect your data? – Technically you are fine because the AC2 Restore process will remove the firmware password & erase all of your data. I had to remove the bottom RAM Piece, and boot it with just only the top positioned RAM in it. Sep 9, 2019 · The firmware password may appear upon initial boot up, but don't worry! All you need to do is to reset the NVRAM using the key combination Command + Option + P + R as soon as you press the power button. 41K subscribers Subscribe May 27, 2020 · Removing a Mac's Firmware Password By Reflashing EFI ROM According to Apple, the only way to remove an unknown firmware password from a MacBook (2011 and later) is to take it to the Apple Store with the original proof-of-purchase. Jul 12, 2021 · My Macbook retina 2015 is disabled and locked by firmware password. Follow this simple steps and in no time you will have your Macbook unlocked. I just bought a Macbook Air A1369 Intel Core i5 on eBay and I found out today that it is blocked with a firmware password. On earlier models changing the RAM config bypasses the EFI lock on the next boot, which allows you to do a PRAM reset removing the EFI password. Here you will need to try to find ways on how to have your Mac EFI unlock free or figure out to how do I bypass the Mac EFI password? Possible Ways to Unlock EFI on Mac for Free If you’ve forgotten your EFI password, don’t worry. Discover how to bypass the MDM profile on a Mac computer equipped with the Apple Silicon M1, M2, M3 and T2 (INTEL) chips. The firmware is protected by a password, and I cannot boot form my HDD. Aug 14, 2024 · I need to delete the EFI password or remotely reset the login password for the MacBook Pro 2020. Recovery Mode, Singel User Mode, Reset PRAM, Boot menu non of these work. Hold down specific keys Mac Unlocker is an instant solution to reset Mac firmware password protection and SecureBoot for all Apple Mac computers with a T2 security chip (MacBook Pro and Air, iMac, iMac Pro, Mac Pro, Mac Mini) without data loss. Cheers! I recently got a mac mini server 2010 and it has a efi firmware lock. 2013 Macbook pro Flashing Green Light No power Repair - 820-3476 iMac 27" Fan spins 9 beeps and shuts back off. Let's fix this. HOW TO REMOVE MACBOOK PRO A1278 BIOS LOCK 2009 MODEL LAPTOPzzz 1. 6 days ago · The same repair applies if you have forgotten firmware password (EFI lock) How to Bypass iCloud Activation lock or EFI lock in MacBook with M1 chip or T2 chip? First step will be to remove the T2 chip on the MacBook motherboard by desoldering. IT IS NOT JUST FOR UNLOCK , ALSO BE USED FOR II. If for some reason you forgot the Mac firmware password, read what to do about that here. If you dont know the password, Apple can remove it. I know people who set a password, use the Macbook sporadically over a period of years without ever needing to boot from an external drive, run diagnostics, etc. Requirements Target computers with an Intel processor. 77K subscribers Subscribe Jun 14, 2017 · To reset the firmware password on newer Macs, you must now follow these steps: Boot with Option key held to display the boot menu's firmware password prompt. Try them if you forgot firmware password on Mac Jul 7, 2016 · Hello, currently trying to repair an A1278 MacBook Pro with a 820-3115-B Logic Board. Remove the Activation Lock for MacBook / iMac | For Any macOS | Tested on macOS Ventura ======================================================= Contact Us if you need This solderless efi unlock chip works on MacBook,MacBook Pro,MacBook Air,Mac mini,Mac Pro,MacBook Pro 2010- 2017 This presentation contains images that were used under a Creative Commons License. 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. - MuertoGB/MacEfiToolkit MAC EFI REMOVAL Full Tutorial Icloud bypass 2021 4. Model: A1707 I bought a used mid-2009 MacBook Pro in unknown condition. Jun 14, 2023 · Ok within about 5 minutes of asking this question I found a solution to my issue. Apr 1, 2015 · Don't get caught out by a firmware password you may have forgotten. Step-by-step instructions and troubleshooting tips included. MacBook EFI - Lost - iCloud Lock password Unlock Any MacBook Pro or Air (2010-2017) 100% Working - Duration: 10:59. The user-friendly CheckM8 software will unlock MacBook Pro & Air with an EFI firmware lock without a password. Jan 22, 2025 · Unlock your MacBook Pro without a password using various methods like resetting NVRAM, using a bootable USB/DVD, or utilizing terminal commands. 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. MacOS Activation Lock Bypass Tool Learn how to remove EFI lock on MacBook Pro using DS-908SE tool. Have any question? feel free to leave your comment below. To remove the firmware password from an Intel processor Mac programmatically, you need to a fair bit of jiggery pokery. I looked at iRemove tools to bypass it but it only works on the Intel MacBooks. Do you guys know any solution without the need for soldering ? The EFI password is stored in the computer’s hardware, making it difficult to directly remove or reset it. Oct 30, 2021 · Due to the new EFI password storage design, the only way to change the password short of desoldering or attaching a hardware based EFI unlocker is the bring the computer to an Apple Store or Authorized Apple Repair location. 2018 to 2020 MacBook Pro or Air unlock EFI lock, PIN code lock, iCloud lock and Activation Lock. Aug 23, 2024 · Discover how to unlock a Mac computer without a password easily and safely. Please help me, because I ain't got any other to work on. ly/efiunlocker Mac Efi password Removal Working 100%Mac EFI BIOS Firmware Password Lock Remover Unlocker De Dec 3, 2020 · I'm sure this video's likely to get a lot of search hits, so full warning in advance - this is not a quick fix for a home user. Apple has implemented encryption and security features to prevent unauthorized access to the EFI firmware. The coating is gone, and it has an EFI password set by the previous owner. A tool for analyzing Mac EFI and SOCROM firmware, featuring limited editing capabilities. 2015 Macbook Pro 15" Remove EFI password NorthridgeFix 445K subscribers Subscribed In this tutorial , we are looking at the secret method, used by Apple to reset the firmware password on iMacs built before 2011. Of course most Macs don’t use Firmware passwords at all and instead have the software based password protection enabled only in the form of a user login and password, with Filevault encryption. This worked for me (had to erase and reinstall twice because I forgot to set a password the first time LOL) but my main fear/anxiety right now is that somehow, just because I was able to bypass doesn’t mean I’m “safe?” I created a user profile upon setup but deleted that with all the info and created a new one, as you suggested. So, my question for the forum is simply whether I can somehow 'get around' this firmware password and downgrade the OS. We al Jul 24, 2011 · Does anyone happen to have any first-hand experience with getting the password cleared from firmware on a 2013 MacBook Pro? From what I understand Apple can do it but does anyone know how long it generally takes? I live over an hour away from an Apple Store and can't really leave it overnight Dec 21, 2009 · I went nuts trying everything to get the "reset RAM" trick to work on My 2009 2. And I started saving the dumped files just in case I have to reuse them for other projects. This will clear the firmware password from memory, and you should now have no firmware password. macbook efi password removal, remove efi password macbbok, macbook, macbook pro, macbook air, imac, mac pro, mac mini, apple efi icloud I recently got a mac mini server 2010 and it has a efi firmware lock. The last owners didn't know it, so it either can bypass/remove it or i can find out the password of the macos on the hard drive. com Typicall there are two ways you can try in order to solve the lost firmware password issue. To address this, verify your Apple ID credentials linked to the device. Oct 4, 2015 · Just because a Macbook has a firmware password that a person is not aware of does not automatically mean the Macbook is stolen/lost. Jul 15, 2022 · Re: Macbook M1 bypass FMM / EFI Unlock I have tried moving forward with safari explorer, but to no avail. Nov 10, 2024 · How to unlock MacBook EFI/Firmware lock Hey all, I bought the 2015 12" MacBook Retina model back in early 2016, though in 2020, it refused to boot and just today I got signal on my monitor as the LCD is broken with a padlock meaning that its Firmware Locked, I do have purchase proof and I do have the apple ID that the macbook was used with. But for basic firmware lock Nov 14, 2020 · The device isn't iCloud locked or anything like that, it just has this firmware password set. Subscribed 2. While this feature provides great security, there may be situations where you forget or misplace your EFI password, leaving you locked out of your own device. Just follow the steps below. Dec 8, 2017 · The conventional password removing or fixing EFI firmware corruptions by soldering is difficult and time consuming even for the experts, but with the EFI Card, it’s easy, quick and hassle free. Apr 18, 2021 · However, this extra level of security is great, but the problem comes in if you forget the EFI password. I've considered a VM and may take that avenue if I have to, but would much prefer to just install the older OS on the MBP itself. Arnold Zafra takes you through the steps to do so. com Unlock MacBook EFI Firmware Passcode Lock just in 1 click!iRemove development team presents Macbook EFI Firmware Password Unlock Tool. Online courses at https://masterliu. May 8, 2023 · How we remove EFI lock password or passcode on a macbook laptop. The firmware password has no reset and requires the laptop's BIOS 2017 macbook pro A1708 EFI Password removal / QFN Chip programming TL866II Plus done Mac iCloud T2 bypassMac MDM M1/T2 bypassEFI firmware 2008/2017 Password Jun 25, 2017 · how to remove or bypass EFI password in early 2015 macbook pro Dec 13, 2023 · Discover a new method to unlock MacBook 2015-2017 without removing chips. 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 Sep 24, 2012 · This will boot you to the Recovery System. So you forgot your Mac firmware password and you still don’t remember it? At this point you can try calling Apple Authorized Support or visit Apple store with your hardware. Feb 5, 2012 · Well, I got a MacBook Pro early 2011 that I bought from a friend 2 months ago. Patreon : https://www. Apr 3, 2025 · If there was a way to bypass it, then what good would an EFI Lock be in the first place. Mac EFI Toolkit can also clear firmware settings and EFI password lock to ensure that the customer can regain access to their device without any hassle. An instant solution to remove forgotten Mac EFI firmware password protection and SecureBoot for all Apple Mac computers with a T2 security chip (MacBook Pro and Air, iMac, iMac Pro, Mac Pro, Mac Mini). Learn step-by-step guide how to get into a locked Macbook, including tips and tricks for bypassing security features Bypass MDM Setup for MacOS, up to MacOS Tahoe 26. The CheckM8 EFI password unlock is a 2-in-1 software. 75K subscribers Subscribed Oct 19, 2009 · Remember, this is bypassing the boot-level firmware password. Aug 14, 2024 · Enter a password repeatedly until a reset option appears. Thank you for helping. On Macs flashing the chip wont work, you would have to replace the chip on the board with one from a board without an EFI password. Make sure it’s entirely off before the next step. 68f99 plz I write from West Africa and I need help to reset the efi password of the macbook to be eable to change the old break disk [Edited by Moderator] May 28, 2024 · How to Remove EFI Passcode or Password on MacBook Laptop Technesia 1. People use this optional lock for a reason and that is to prevent use by anyone else, as they are the only ones that would know the password, and if forgotten would be able to provide the purchase receipt. It is unencryped and i have access to all of the files. . 5 macbokpro8. Apr 4, 2017 · Learn how to bypass firmware password on Mac OS X, MacBook Pro, iMac using 2 tested methods. Last one I did was a lucky break because there was no iCloud lock present, this one's a bit trickier. This trick will allow you to gain root level access and bypass any login password on Macs Step 1 : Get access to Terminal Step 2 : Inside Terminal type "cd /Users" Step 3 : Inside Terminal type "ls". But it's a delicate chip, it would need good soldering tools and extensive experience on board repairs. 58K subscribers Subscribed Feb 11, 2022 · When you set a firmware password, users who don't have the password can't start up from any disk other than the designated startup disk. 8K 272K views 4 years ago #apple How to remove firmware password on MacBook . Need repair? Technesia. But what if you lose your MacBook Pro's password and cannot access it? Relax; we've got your back. 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. Jan 6, 2025 · Here's our guide to help you unlock your Macbook Pro without password or Apple ID and it is all relevant even in 2025. However, rebooting again by holding command+R into recovery still shows the EFI lock screen. Jfix 30,227 view Choose to turn the Firmware Password off. I had to buy a replacement charger for it (linked below) but discovered that it powered up but would not go into recovery mode. Aug 5, 2025 · Read to learn how to unlock your MacBook Pro without a password or Apple ID. more Mar 30, 2023 · If you forgot your password, you can unlock your MacBook without it or even your Apple ID. #apple #firmwarepasswordmore How to Unlock 🔓 EFI/Firmware 🔒 lock just Follow up simple steps & comment to ask any questionTo get Unlock file go to the given links BelowWhatsApp https:/ The comments above saying it can't be bypassed are when apple has activation locked the device or it is being managed by a company and the serial number is registered on a remote server for software management. commore Sep 13, 2018 · There’s no easy way to bypass firmware password. It is the best EFI rem This MacBook Pro has some issues. Solution 1: Mac EFI Unlock Free with Firmware Password Utility This is amongst the most manageable and the simplest means of holding your Mac EFI unlock free. I did this using the mac diagnostic method. 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. I just reproduced the glitch on my 2016 MacBook Pro and the sequence was able to bypass it. Here's how to remove your Mac's EFI password. Contribute to assafdori/bypass-mdm development by creating an account on GitHub. See full list on devicemag. that's just for the account password, you can still set an EFI password and encrypt your disc with 2 simple clicks and a) you won't be booting that mac at all unless you have a soldering iron and a TL866A or similar eeprom reader, and you won't be accessing that data at all without the password. One click is all it takes to get the job done! Apr 13, 2025 · To try a PRAM reset to bypass firmware password: 1. Next you will use a programmer to reprogram the T2 chip and write unlock data. An AASP does by no means 'bypass' the Firmware Password, it is simply removed with a tool specific for that exact machine. You'll need to spawn an Expect script that can respond to Terminal The EFI password is now removed. MacBook PRO 13 (mid-2012) EFI BIOS Password Reset This tutorial can be applied to also other Apple products. This is the only way to use safari. Supported Mac machine with Apple T2 Security Chip Today we are removing EFI / Firmware Password Lock from a Macbook need repair? technesia. For others in the same situation here's what you need to do: 1) Remove - iMac Intel 20" EMC 2316 (Edu) Nov 14, 2025 · With the help of a Mac EFI unlock tool, you can recover or bypass the password, and if everything else fails, then you have the option of getting Apple’s help. Mar 16, 2017 · This works on modern Macs, including the following (this list is not necessarily conclusive, always contact Apple directly if you can not remember your firmware password regardless of the Mac): MacBook Air (Late 2010 and later) MacBook Pro (Early 2011 and later) MacBook Pro with Retina display (all models) iMac (Mid 2011 and later) I remove EFI passwords from Apple: MacBook Pro/Air, iMac, iMac Pro, and more. . ChecM8 Software is ready to Remove & Bypass Activation Lock on Mac with out Apple ID and password. MacBook Air (Original), MacBook Air (Late 2008), and MacBook Air (Mid 2009): Recovering a lost EFI firmware password - A… If you lost or forgot your firmware password - Apple Support How to bypass and remove MacBook login password - Works on all Macs (READ DESCRIPTION) Use an iCloud Activation Locked Macbook M1 / M2 / M3 (T2 chip) without activating Sep 17, 2025 · Students and businesspeople alike adore the MacBook Pro as a notebook. When I googled it, I found that the firmware password should be removed or reset, but I don't know how to reset it. patreo Mar 1, 2024 · Macbook pro 2010 Core i5 Os : Yosemite 10. Methods and tools to bypass the EFI password may not work on all MacBook Pro models. 2015 Macbook Pro 15" Remove EFI password NorthridgeFix 445K subscribers Subscribed How To Remove A BIO'S Password On Any Apple Computer - iMac Desktop & Macbook Laptop - STEP BY STEP Alex Moenssen ibuynsellelectronics 2. The first issue was fixed by removing the coatin Jan 26, 2016 · Hello guys. Set a firmware password on your Mac When you set a firmware password on your Intel-based Mac, users who don't have the password can't start up from macOS Recovery or any disk other than the designated startup disk. This is how iphones are cloud locked, which is nearly impossible as the serial number can't be changed and it always checks the remote server after format. Unlock MacBook Pro & Air with EFI firmware lock without password? If your MacBook is protected by the security firmware passcode (EFI password), you can easily unlock your device. If you know the EFI password you can remove it from recovery, or using a terminal command. I have the box, I have the receipt, the MacBook is mine, I remember all the data except the EFI password. No Power Repair. Nov 28, 2021 · When you set a firmware password, users who don't have the password can't start up from any disk other than the designated startup disk. Answered! Dec 29, 2023 · You can bypass mobile device management on MacBook Pro, Air and other Macs with the assistance of the useful CheckM8 macOS MDM bypass tool. To unlock the EFI lock and PIN lock, you can directly Firmware lock on the MacBook Pro A1708 restricts startup without the correct password, protecting against unauthorized use. 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. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. May 28, 2019 · If you have an EFI Firmware lock or password, then you need to follow the steps in this article. From leveraging your Apple ID to utilizing Mac Recovery Mode and Target Disk mode, we've got step-by-step instructions on Jan 12, 2024 · How to unlock MacBook Pro without password or Apple ID? Check the 6 solutions and step-by-step guides in this post. Macbook Pro 13 2017 A1708 EFI Password removal QFN Chip Unlock Bypass WildReviewTech 6. Click Utilities from the menu and then click Firmware Password Utility from the menu From the dialog box, click the Turn off Firmware Password button. online. Incorrect attempts to bypass the EFI password may result in irreversible damage to your device. How to Remove Password from Mac: https://rebrand. Click Turn off Firmward Password and restart your I found a M1 MacBook Pro on eBay purchased it and now it has been delivered. Nov 3, 2020 · With CheckM8's software, you can remove Mac EFI security firmware (BIOS) password protection and disable secure boot on all Apple Macs that have an Intel processor with an Apple T2 security chip. Keep your Mac secure by following these tips. However upon powering it on it seems that it is iCloud locked, waiting on an activation. Typically, this will happen after you’ve entered your password incorrectly up to three times. Entering your password incorrectly a few times will eventually cause your MacBook to offer you a reset option. MacBook Pro M5 VS MacBook Air M4 Which is the BEST Laptop Now? How to bypass and remove MacBook login password - Works on all Macs (READ DESCRIPTION) There is a very easy way to bypass the iCloud lock on your Macbook. I need to reset it. 10. MacBook Pro (2018 to 2020) EFI, PIN & MDM can to removed , but Activation lock , you need to replace the T2 chips. The option you see will depend on how your Mac is set up. Ways to bypass the MacBook password and get into your locked MacBook. Watched the video from Definitive Mac Upgrade Guide and ended up on this thread. Cheers! All Apple models laptop and iMac, 4-6 PIN BIOS Password Removal. EFI BIOS Lock 🔒 en una Mac 💻 PASO a PASO desde 2011 hasta 2017 MacBook Air y MacBook Pro Juan4Repair 5. If prompted, select the language you want the Recovery Partition to use.