You just want to remove bloatware. You can disable apps via ADB without unlocking the bootloader ( pm disable-user --user 0 com.huawei.bloat ).
Since the MediaPad M3 uses the Kirin 950 chipset, you can use the open-source PotatoNV tool. This requires opening the tablet's back cover to access a "testpoint" on the motherboard. How to Unlock Bootloader in HUAWEI MediaPad M3 ...
If your MediaPad M3 is running EMUI 8.0 (Android 8.0), you cannot use the free software exploits because Huawei patched them. You must downgrade to EMUI 5.0 (Android 7.0). You just want to remove bloatware
On Huawei devices, a factory reset will trigger a "System has been destroyed" error if the bootloader is unlocked and the firmware has been modified. To re-lock, you must flash the first, then use the command fastboot oem relock <code> . This requires opening the tablet's back cover to
Unlocking the bootloader on your HUAWEI MediaPad M3 can provide you with the freedom to install custom operating systems, recoveries, and other modifications. However, it also voids your warranty and can potentially brick your device if not done correctly. In this guide, we will walk you through the process of unlocking the bootloader on your HUAWEI MediaPad M3.
