Installing a custom ROM on the Huawei MatePad 10.4 is highly difficult and generally not recommended for most users because Huawei stopped providing bootloader unlock codes years ago. Without an unlocked bootloader, you cannot flash a new operating system like LineageOS.
: While the MatePad supports Project Treble (allowing for Generic System Images or GSIs), you still cannot install them without first unlocking the bootloader. Alternatives to Custom ROMs huawei matepad 10.4 custom rom
Because the bootloader is locked, there is almost no developer support or device-specific custom ROMs for the MatePad 10.4 on platforms like XDA Developers Proprietary Hardware: Installing a custom ROM on the Huawei MatePad 10
Since traditional custom ROMs are largely unavailable for this device, users typically turn to virtual environments to run Google Mobile Services (GMS) or "de-Google" their experience. Virtual Machines (GBox / GSpace / VMOS): Applications like Alternatives to Custom ROMs Because the bootloader is
Because Huawei never released Kernel Source Code for the Kirin 820 fully, developers rely on Project Treble. The MatePad 10.4 supports Treble-compliant GSIs. This means you can flash any Android 12/13/14 GSI.
The most critical hurdle is the locked bootloader. Unlike some other Android manufacturers, Huawei does not offer a legitimate way to unlock their newer devices. Third-Party Services: Some paid third-party services (like DC-Unlocker
Privacy Control: Use de-googled ROMs or advanced privacy features not available in stock firmware. Alternatives to Custom ROMs