To unlock the bootloader of a HUAWEI MediaPad M3, you must first obtain a unique 16-digit unlock code. Once you have this code, the process involves using ADB and Fastboot commands on a computer to communicate with the tablet. Important Warning
Install Drivers: Download and install Huawei HiSuite on your PC to ensure all necessary USB drivers are present. How to Unlock Bootloader in HUAWEI MediaPad M3 ...
The bootloader is the first piece of software that runs when you turn on your tablet. It verifies the operating system's integrity before allowing it to load. By default, this is "locked" to prevent unauthorized firmware—like custom ROMs—from running. For many years, Huawei provided official unlock codes through a dedicated portal. However, as of July 25, 2018 To unlock the bootloader of a HUAWEI MediaPad
fastboot oem unlock
fastboot oem unlock <UNLOCK_CODE>