files remain the primary way to get newer Android versions like Android 11 or 12 Available Custom ROM Options
Enable Developer Options → OEM Unlock. If greyed out → impossible. If enabled, try fastboot oem unlock (but Huawei won’t give code).
(versions up to 18.1/Android 11) remove heavy Huawei bloatware, resulting in smoother animations and faster app switching compared to the stock Android 8.0/EMUI 8 experience. Modern Software
This open-source tool can generate unlock codes for the Kirin 659 chipset used in the M5 Lite. It requires disassembling the tablet to access a "test point" on the motherboard.
Unlock BL -> Wipe Data/Cache/System -> Flash ROM -> Flash GApps -> Reboot.