Hack Into An Efi Locked Mac

So I purchased a MacBook Pro from someone which seemed to work fine at first. But then I reformatted the drive so I could install a fresh copy of MacOS.

I noticed that every time I boot up now the lock icon shows up on the screen.

Oct 09, 2015 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.
Dec 16, 2016 'If the Mac is sleeping it is still vulnerable. Just stroll up to a locked Mac, plug in the Thunderbolt device, force a reboot (ctrl+cmd+power) and wait for the password to be displayed in less than 30 seconds!' Frisk reported his findings to Apple in August and the company fixed the issues in macOS 10.12.2 released on 13 December.

I did some research and found out it is a EFI / Firmware locked. I’m not sure exactly which one is the proper term or if both mean the same thing. Anyways, I have a spare MacBook Pro, same year, same kind of model and was wondering if i could just pull out the logic board from my spare system and put it into the system which is locked?

Would this eliminate my problem and have the ability to use my device? I really hope I can get an actual answer and not some sad person telling me its stolen and to give it back.

Thats not the purpose of this site now is it?

Apr 01, 2020 If your Mac is using a firmware password, you're prompted to enter the password. Option-Command-P-R: Reset NVRAM or PRAM. If you're using a wireless keyboard, plug it into your Mac, if possible. Or use your built-in keyboard or a wired keyboard. If you're using a keyboard made for a PC, such as a keyboard with a Windows logo, try a keyboard.

Is this a good question?

Comments:

The best you can do here is contact the original owner for the password.

Mac OS is one of the most secured operating system provided by Apple. The protection mechanism is akin to all other operating systems, but the registry files accountable for creating the security barriers are a bit different, rather crude to bypass. 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 login, 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. But here we would confine our excursus on how to bypass the Mac OS password to gain access into the system. The discussion hereby would involve 3 essential methods which would help you inevitably to resolve your issue.

Method #1: Password Hint for Your Mac Login Password

Before you proceed with resetting your password anew, and replace it with a new one, you better try out the password hint which might refresh your memory after a while. In fact there is no limit to the number of times you can enter the password hint, and after 3 attempts Mac OS will provide you the password hint (Password Hint is a phrase or sentence extract which you had entered into the hint box while setting up the password in the first place). Infuse the steps mentioned below to carry out the method accurately:

Step 1. Firstly open “System Preferences” from the “Apple” logo.

Step 2. Select “Users and Groups” category.

Step 3. From the bottom left corner, click on the “Lock screen” icon.

Step 4. Press the “Return” key 3 times in a row. The screen will shake every time you press the “Return” key. After the third shake, the password hint will be displayed below the “Password field” which you can use to try out your luck.

The best part about this method is that there is no limit to the number of password trials, so you can keep trying until you get to recall it fully. But if the method is not helping you anyway, then you better skip to the next methods refined ahead.

For windows user: How to bypass Windows 10/8/7 login password

Method #2: Change Password from Another Account

If you have set up multiple accounts in your device, or share your device with another user which might have created another account in the same system, then you can use this separate account to change the password of your own locked down account.

The steps are laid out as follows:

Step 1. Click on Apple’s logo and then choose log out from the top left corner.

Step 2. Select an account you know the password to and enter the password thereby to gain access to the account.

Step 3. Go to “System Preferences” and click on the “Lock” icon at the bottom left corner of the screen.

Step 4. Enter your password again and then choose the specific account that you have forgotten your password for from the side pane.

Step 5. Now; click “Reset Password” and fill up the fields and the “Password hint” field.

Step 6. Finally click “Change Password”.

And you are done! You can now access the account with the newly created password.

Also read: 2 ways to boot your Mac into safe mode

Method #3: Use Recovery Mode to Recover Mac Password

Besides providing all the essential luster to the fundamentals of the operating system, Apple provides a tool, that is “Recovery Mode” for Mac OS or Mac OS X, depending upon which version you are currently using, you can use it to recover your forgotten Mac login or admin password.

How To Bypass Macbook Firmware Password

Step 1. Press the power button of your device and while doing so press and hold the “Command-R”. This way Mac will boot into the Recovery Mode. Once the load bar is visible you can let go of your hold of the buttons.

Step 2. It will take a few minutes to load, and after it is loaded, choose the “Disk utility” and press “Continue”.

Step 3. Go to “Utilities” and then select “Terminal”.

Mac Efi Lock

Step 4. Now; in the empty field, enter “resetpassword” just in the exact manner and press “Return”.

Step 5. Choose the Volume which is your main hard drive containing the account.

Step 6. Now; select the account you wish to change the password of by “Select the User Account”.

Step 7. Enter your password and re-enter it for confirmation.

Step 8. Enter a password hint for future use and click “Save” to save the changes.

Step 9. A warning would appear notifying that the password has been changed but not the Keychain password. Click “Ok” to finish.

Step 10. Finally, click on “Apple” logo and then “Shut Down”.

Efi Locked Macbook

Now, start your Mac OS and enter the previous account with the new password.

Conclusion: