Early 2011 model, A1278 / 2.3 GHz i5 or 2.7 GHz i7 processor.

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How do I reset the firmware password on my MacBook Pro?

Hi, everybody. I'm Wilson, as you see on the forum. 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.

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Warum nicht auf Deutsch

Hallo wollte mal Fragen wie ich mein Firmware Passwort entriegeln kann da ich es vergessen habe, wenn jemand mir helfen könnte, habe ein 17zoll Macbook Pro Ende 2011

thanks you sir its working

Please use English!

I'm Jeff, I got a MacBook Pro that I bought from a friend . 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.



所有超过US$100或包含 Pro Tech工具包的订单免费送货!




Have you tried this? Feedback from the comments in the article says it works:

Add or remove a stick of RAM. Obviously if you have one stick in, add one and if you have two in remove one.

Power on the Mac and immediately press and hold command-option-P-R.

The system will restart with the ‘bong' noise; allow it to do this 3 times. On the third ‘bong’ you can let go of the keys.

The machine will now boot with a cleared password and reset PRAM/NVRAM.

You can then shut down the machine and reconfigure the RAM configuration as you want it.


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Good call--here is a link to the article. +


wow.......you are great sir..it really worked :D

Wow Thanks a lot

will not work on anything above 2008 model you have to clear out the bios chip with programmer check out http://jerseycityrepair.com/macbook-air-...

Wow Thanks a lot,, It really worked, it's been an on going problem and i mean pronlem with my Mac,.. with many trips to the Apple store + $$$.. Thanks a lot..



I am a hardware engineer and former employee of a large computer company with that said i can give you a basic understanding that you can hack or reverse any efi password with the proper tools. all you have to do is reprogram the bios chip with a clean firmware that does not have a password on it. for this you will need a couple of things. first you have to identify the bios chip (microcontroller), then you have to get a .bin file that does not have a password on it and it has to be for your specific machine 2011will not work on 2014 and so on.(that maybe hard to get since manufacturers own this info and do not give it out. thirdly you need the proper tools to do it. eprom programmer once the chip is removed from the board. this is just a basic description. I have seen it done and here is someone that can answer more in depth questions or do it for you.|http://jerseycityrepair.com/macbook-air-...]

Block Image

ok so here is a picture of the bios chip on the bottom right. It is the chip with 8 legs. it is the MXIC6406e CHIP and it is used in many computers not only macbooks but hp and many others. remember that most components are just that components and every company uses them. just the data onboard the chips are different.

thats the best I can do in a basic explanation. this work is on a engineering level that goes beyond the knowledge of technicians and is fully understood by those that can build a computer from its most basic components and make it work. In other words it not easy but it can be done with some education and skill.


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will not work on anything above 2008 model you have to clear out the bios chip with programmer check out http://jerseycityrepair.com/macbook-air-...

@Sam, the links seems to be broken :/

Not much has changed in the mac book since 2010 it's still the same type of EFI BIOS chip in the new 2015 2016 in 2017 models only difference is it is a BGA chip the type where you cannot see the legs which makes it a little bit more difficult to program but the correct way of doing it will have to be through the Diagnostics port on the motherboard of the MacBook Pro or MacBook Air I know of many technicians who tried to do a souldering job to remove the chip only to end up with a bricked motherboard. The only thing that has changed has been some updates to the EFI programming from Apple that only allows you to install the latest OS X without being able to downgrade so it's important to remember that you should not update your EFI bios chip on your MacBook Pro or air because you will not be able to install an older OS X once you upgrade to a newer one.


One thing to note:

90% of the people who do BIOS level fixes &&^& up the ME region, meaning, your laptop will run slow, and suck in graphics applications when running on Intel video. If yours experiences this after having someone mess with your BIOS on a core i platform, they messed up the ME region.

The ME region of the BIOS speaks to the PCH. They do a handshake upon first boot.


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You can do this with a Snow Leopard DVD. Apple sells this for $20 but I think they only continue to sell it for Mac OS X upgrades since you need to have 10.6 installed at the bare minimum to upgrade the OS through the App Store. While 10.6 has been EOL for years and application/hardware support hasn’t been there for years, it does come in handy - legacy hardware and situations like this are why it still makes sense to keep around.

In order to boot from the DVD, put it in the drive and press Option and select the DVD or press C. Both of these will work, so it's a matter of which one works for you. Expect to sit for ~15-20+ minutes or more to err on the side of caution - this won’t be quick.

Once the DVD boots, go under Utilities and find Password Reset utility. This will allow you to clear it out.

If you have a HDP (Hard Disk Password), the drive is typically discarded because it’s so difficult to recover it. It can be done but the use of encryption on most drives makes it impractical to even try. You can try and crack it, but you may damage the firmware on the drive and permanently mess it up. Don’t try unless you don’t care about the data or you know EXACTLY what you are doing!

2017 Edit

Being I changed this answer to not read as if I wrote it like I don't care about the quality, I am providing more information. The old methods that work on many old systems (pre-2011) do not work on 2011+ hardware. These store the password encrypted in the EFI chip on the laptop and you need the master password from Apple to remove it. You need to take these systems to Apple to have the machine reset AND provide a proof of purchase. These also have a TPM, but it was never used and was dropped when the rMBP was released.


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Sam is partially right,

On newer Macs you MUST have an Authorized Apple Technician (like me) and we MUST speak with our second level support at Apple, they will send us a file to put on a formatted USB thumb drive that will erase the system password.

This is the only way and... there are no connector on the logic board to do this on the MacBook Pro 13 early '11.

So if you have this problem just go to the nearest Apple Store or Apple Premium Service Provider, they will know what to do.


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Riki, I bought my 2011 Macbook Pro from a private party about a year ago. Last weekend my housemate copied a Mac Os disk in my machine and suddenly the lock screen appeared an will not go away. The problem is I have not proof of purchase that the Mac centers need. What can I do?

im in the same boat nevilvfried, what did you end up doing?

Systems that all of a sudden go into lock up like this is were the original owner enabled Find my Mac putting it into lock down. This is just like Find my iPhone service but for your Mac. I would go back to whom sold you the system and get your money back as it was likely stolen.


The Best way to unlock your mac is to go to service provider. they will unlock it free of cost if you have Proof of purchase ( billing invoice ). they will unlock it in Approx 10 mins .


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An iPhone yes that is the way, a MacBook Pro that is not the way.

In a way I agree with Dan, if its brand new from Apple then yes you can send it over to a service provider close by I know I got my Apple Macbook Pro used it won't do any good.


This guys where able to help http://www.iunlockmac.com


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Changing the chip is a bogus, not speaking how this is stupid and void warranty...and simply will not work. The solution: You must read the BIOS flash and send the dump to allservice.ro, they can recover or patch the BIOS in order to clear the lock. The S/N and all your settign will remain intact. Those guys a pros. See their forums:



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The BIOS can be programmed in system just fine, there is also a connector for that on the motherboard on almost all models. Just stop spamming dude

Programmed in system ??


Please people stop spamming, its easy to remove the system pass-code to the chip (bios) just add or remove RAM and follow the directions

Power on the Mac and immediately press and hold command-option-P-R

Do it a few times it will work


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Removing the single RAM module trick only works on the older models the newer Atmel chipped models this won't work.

The Command-Option-P-R only resetting the saved settings not re-programing the EFI part of the chip.

Yea, on a late 2011 MBP8,3 the Password Screen with no text and just the "Lock" and "Password Input field" with an "arrow" on the right pops up with the cmd-alt-P-R (Command-Option-P-R) keys at boot. No 'bong' or any sound at all. When I enter a password it proceeds to the "OS X Utilities" section. Trying to change the firmware password with the "Utilities --> Firmware Password Utility" does not accept the previously accepted password..

This is what mine is doing


Very very helpful tip. Was dealing with this same issue for over an hour. Thank you so much.


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Didn't work for MacBookPro8,3 - Password is asked and accepted to reinstall, but reset password not accepted. How is this possible, when the password was accepted for the setup and reinstall?


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Only use a service provider when possible. If in training or repair class with us. The password on newer macs is EFI locked. On older systems, you can use ram or the MAcUnlock.exe tool on the web. You actually can decrypt the bios on new macs by removing the chip, and copying it over to a Laptop with like a TL866 burner. Prefer windows pc for all this to work well. As Dos is critical in making these. In fact all Apple Laptops were designed on Windows based PC's. Just look at the Boardview files that have been made alone. Use a free tool like HexEdit. Even search the bios for the SSN, email account, etc. if need be. You can search the bin file very easily. -------

In fact in windows there are tools like RWeverything that reads this info in windows. Run Wine and try it too on MAC OS! --------ME region only applies to first boot on new machines, or a machine that has a big main chip changed. For passwords it is irrelevant. . After 1st boot, ME only is set for this machine. You need a clean ME for any chip changes, NB, PCH, MCH, NB, SB, GPU) But not a concern here in this application.

I only give the clue in this class. But search the bin file a little. And with a little magic and looking. You will spot the 4 digit code you have been wishing to know about.

Hint: Search bin for the term ssn: See a little more while your in there. Alot to see. Enjoy!


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Look, there is a way that we can use to bypass it, and make a new installation

in the "atmel chip" if I remember what I did, when you power on your mac short circuit the 2 first pin, according to me the 2 first pin are those which fix the border of the board, I will upload a picture of it to show you guys. But your mac still have the firmware but you can use it as well

N.B: At your own risk

Enjoy it ...

I never heard that shorting would work. This pin short is very common in Toshibas, As the Bios password is not stored in the bios on any Toshiba. Ever. Just a pin short under the RAM sockets. Apple never made it that easy. Might have been coincidental to have happened. But this may be mixed up with another brand actually.

Well Ra Kham short the pin is not going to remove the efi password but bypassing it only, there's a big difference between the 2 words brother …

Have fun

This should work on both EFI (Intel) and OFI (PPC) based Macs.

1) Shut down your computer

2) Remove the battery

3) Remove the three philips head screws that are on the L-bracket

4) Remove the L-bracket

5) Slide one of the levers (it doesn't matter which one) to the left. This will release the RAM

6) Gently wiggle the RAM card out and put it aside, you will put it back later(do NOT touch the gold bars on the front; you could break it)

7) Replace the L-bracket and put the battery back in

8 ) Boot up the computer while holding COMMAND+OPTION+P+R (this resets the parameter ram)

9) Wait for the startup chime to sound 3 times

10) Release the keys and shutdown the machine once you reach the login screen

11) Remove Battery and L-Bracket, replace the RAM module and slide the lever back while pushing it in until it does not wiggle anymore

12) Replace The battery and L-Bracket

13) Now if you boot up the machine you should bypass the Mac firmware password.


Remember, this is bypassing the boot-level firmware password. Most Macs have the software based password protection enabled only in the form of a user login and password. If this is the case, you can use methods to reset a forgotten Mac password to get around the user login completely (instructions for OS X Lion are slightly different).

"this works when carried out exactly as stated. the last steps of putting back the RAM module are not even necessary:

the firmware-password is stored based on a combination of hardware., altering any kind of hardware, then resetting PRAM (3 times the chime=important) works any time! removing RAM is the easiest way:

remove one module, boot back up holding cmd-alt-p-r for three chimes, let boot up:firmware password deleted."


Get around a Mac Firmware Password

This should work on both EFI (Intel) and OFI *This is a hardware based hack, proceed with caution!*




I have the same problem but I really do not work.

Maybe you can take a little movie so I can see how you really do it.

Just send to erwin.simons200@gmail.com



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APPLE dont do it without original receipt and Email address confirmation where the mac is registered for the owner . Apple is very strict with these condition for EFI lock bios password.


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nice read but with the correct tools very simple on any model from 2010-2017

www.sheffieldmacrepairs.co.uk will just remove the password out the efi chip no need for new software for the chip just remove the partion stright out the chip takes less than 3 mins job done


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For newest models you need to edit eeprom data to take off efi password.

Here is a video manual -

Also look at video description for more details and related videos about programmer used & etc...

And subscribe to channel ;)


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I had the same thing (firmware-lock and Icloud-lock) and I use a lot of linux distro’s, so I had the feeling of a procedure that would probably work. We’ll it did!

Important! Only if u don’t mind losing the files on your ssd or hd!

1. Download a fedora workstation live-iso https://getfedora.org/

2. Burn the .iso to a usb-stick. With Etcher https://etcher.io/ it will probably always burn successful, and available for win10, mac and linux.

3. Download a ubuntu live-iso https://www.ubuntu.com/

4. Burn it also to a usb-stick with Etcher.

5. Fedora uses also efi, like macOS. So if ubuntu will not show up as a, .Windows install-disc when pressing the alt-key at start-up. Then first boot in fedora live. If u can boot straight to ubuntu you can go to step 7, but it can’t harm to follow step 6 also.

6. Use the Disks utility in Fedora Live and delete all the partitions on the ssd/hd. Reboot.

7. Boot into ubuntu. And actual install it on the whole ssd/hd. Because we still need to replace the apple-efi-recovery with grub2-bootloader. In the install-proces you will get a warning like: “When proceeding you will delete efi. It can be difficult to install another OS later on the machine” We’ll just press ok, and accept the grub2-install of ubuntu. Reboot.

8. Hold the command-R keys at start-up. Make sure u can connect to wifi. Internet-recovery will start.

9. Open disk-utility and just format the ssd/hd back to 1 Apple journaled GUID-partition

10. Select fresh OSX install. Done! A fresh MacBook Air that u can register with your own Apple-ID.

I only tested it on Macbook Airs shipped original with Lion but I can’t think of a reason why it will not work on newer ones. Older ones (pre-internet-recovery) U probably can use a OSX install-usb at step 8.

Please add comments, when u run into some kind of trouble! Good luck!


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Egge, that does not work.



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