Unlock macOS Catalina: iCloud Activation Lock, EFI firmware & System Pin Lock

Unlock macOS Catalina: iCloud Activation Lock, EFI firmware & System Pin Lock





Apple first introduced the Activation Lock feature on their Mac computers equipped with T2 security chips. Activation Lock is linked to Find My Mac and gets enabled automatically once Find My Mac is on. The main purpose iCloud Activation Lock was created for is prevention of unauthorized Mac usage, as well as access to the information on it.

Catalina and macOS Activation Lock Problem

If a Mac computer user forgot his or her Apple ID or Password and entered incorrect credentials to Catalina macOS login, their computer becomes Activation Locked and can’t be used until the correct Apple ID and password are entered. Some users may think that Mac’s erase or reactivation will help them to unlock their computers. The truth is they are wrong. These actions won’t solve the Activation Lock issue on macOS 10.15 Catalina. Entering the correct Apple ID and password are required to unlock a Mac computer.

The other reason when Activation Lock won’t let you use your Mac on Catalina is when you buy a used computer with Find My Mac on. If a previous owner didn’t disable Activation Lock by turning Find My Mac Off, your computer will display an Activation Lock Screen requiring you to enter the correct Apple ID and password.

macOS 10.15 Catalina and Mac T2 security chip

iCloud Activation Lock works on macOS 10.15 Catalina only on Mac computers with T2 security chips and Find My Mac enabled. The main task of the T2 security chip is securing the following essential features: Activation Lock, Touch ID, secure boot, encrypted data storage and others.

Catalina and Mac Apple T2 Security

T2 security chip has control over the Catalina booting process by making sure that drivers approved by Apple are installed on a Mac computer. T2 starts its work once you push a power button and finishes it when Catalina desktop is displayed. As a summary, the work T2 chip does is verification to confirm that Apple signed your Catalina OS and bootloader.

Once the verification is complete, you’ll be asked to enter Apple ID and password to unlock the Activation Lock Screen and start using your Mac computer on macOS 10.15 Catalina. If you want to disable Activation Lock on Catalina, you should turn off Find My Mac by entering the correct Apple ID and password.

macOS Catalina Activation Lock Bypass Process

If you forgot or don’t know the correct Apple ID and password, you can bypass Activation Lock on macOS 10.15 Catalina with Checkm8 Software on the following T2Macs: MacBook Pro & Air, iMac and Mac Pro\mini.

Catalina and macOS Activation Lock

You won’t be able to load your Mac on macOS Catalina and it will be stuck on Activation Lock Screen if Find My Mac is on. Checkm8 tool will skip the activation step on the hardware under T2 chip’s control which will bypass the Activation Lock. Please note that Checkm8 Software works only with Mac computers with T2 security chips.

The main advantage of the software Checkm8 dev team is proud of is that you don’t need to enter any Apple ID or password to bypass Activation Lock on your Mac computer on macOS 10.15 Catalina. Checkm8 Software will bypass the Activation Lock Screen on Catalina for you in 1 click!

How to: Bypass Activation Lock Screen on Catalina macOS with Checkm8 Software?

User-friendly interface of Checkm8 Software will allow even inexperienced users to bypass the iCloud Activation Lock Screen on T2 Mac computers running on macOS 10.15 Catalina. It doesn’t require any tech skills or special knowledge to successfully bypass the Activation Lock on your Mac.


What you’ll need is an unlocked Mac computer and USB Type-C – USB Type-C cable which will connect the locked and non-locked Mac computers. The bypassing process with Checkm8 is very simple and here is what you should do:

  • Download the Checkm8 Mac Activation Lock Bypass Software and install it on the unlocked Mac computer.
  • Connect both Mac computers with a USB Type-C – USB Type-C cable.
  • Put the Activation Locked Mac into DFU mode. Checkm8 Software will verify it to make sure that Mac in DFU mode is supported. If so, you’ll be offered to buy a license for the activation locked Mac.
  • Please Note! Checkm8 Software license will be provided for the verified Mac only. Its serial number will be entered into the database. This will allow you to repeatedly use it for free in case of relock.

  • Click the Start Bypass button and wait for the bypassing process completion.

Your Mac will turn off upon the Bypassing Process completion. Just turn it on using a power button. Now you can freely use it with your Apple ID and with no restrictions.

How to Unlock EFI firmware or System PIN Lock on macOS Catalina?

Apple has more security tools for their Mac computers with T2 security chips. EFI, or Extensible Firmware Interface, password was made to protect processes associated with macOS 10.15 Catalina. This security tool starts its work during Mac’s starting up. EFI Firmware unlock software by Checkm8 will easily remove EFI password from Mac on macOS 10.15 Catalina. Checkm8 Software is compatible with all T2 Mac computers. The EFI unlocking process is the same as the iCloud Activation Lock bypassing process. All you have to do is download Software and follow the on-screen guide.

Big Sur and EFI Lock

Checkm8 EFI firmware password unlock software guide is also available to give you a clear picture of how to remove EFI protection on Catalina macOS computers.

In case your Mac computer on macOS Catalina also has a system PIN Lock, you can use Checkm8 iCloud Pin Lock Software to remove it.


The Checkm8 team is always on the software improvements and updates. Please follow us on Twitter to stay tuned on the latest updates related to the Checkm8 software!

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