Lock and unlock the bootloader | Android Open Source Project
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Since official channels are closed, you must use third-party tools to read or generate the 16-digit code: How to Unlock Bootloader in HUAWEI M2-A01L Medi...
Unlocking the bootloader on the HUAWEI MediaPad M2 10.0 (M2-A01L) Lock and unlock the bootloader | Android Open