Huawei Matepad 104 Custom Rom 2021 __link__ -
For the Huawei MatePad 10.4 (2021), there are currently no functional custom ROMs available.
Elias downloaded the necessary tools:
- Clear prerequisites – Bootloader unlock method (rare), working TWRP build, backup of stock firmware.
- Step-by-step guide with model number verification (e.g., BAH3-W09 only, not BAH4).
- Working features list – Touch, Wi-Fi, audio, GPU acceleration, sleep mode.
- Broken features list – Camera, widevine L1, stylus pressure, auto-rotate.
- Recovery instructions – How to flash back to stock HarmonyOS via dload method or eRecovery.
- Do not install a custom ROM. The 2021 builds are outdated, unsecure (no security patches after 2020), and buggy.
- Alternative 1: Install GBox or GSpace to run Google apps inside a sandbox. This requires zero bootloader unlock.
- Alternative 2: Downgrade to the last official EMUI 10.1 (Android 10) using Huawei's HiSuite proxy, then use a 2021-era GMS installer.
Post-Flash (2021 specific fix):
The first boot takes 5-10 minutes. On LineageOS GSI, you must flash a "Huawei audio fix" via fastboot, otherwise speakers output static noise. huawei matepad 104 custom rom 2021
Why Custom ROMs Are Nearly Nonexistent for This Device
- Locked Bootloader – Huawei stopped providing bootloader unlock codes around 2018. Without an unlock, you cannot flash any custom ROM (LineageOS, GSI, etc.).
- Kirin 820 / 710A Chipset – These use HiSilicon SoCs with poor AOSP/GSI support compared to Qualcomm or MediaTek.
- HarmonyOS instead of Android – The 2021 MatePad 10.4 ships with HarmonyOS 2.0, which is not AOSP-compatible in the traditional sense. Most custom ROM tools expect Android.
Step 1: Unlock Bootloader (The $25 method) For the Huawei MatePad 10
Was it Worth it in 2021?
For the average user, the answer in 2021 was no. The risk of bricking the device, combined with the cost of unlocking the bootloader and the instability of early GSI ports, made sticking to stock EMUI/HarmonyOS the smarter choice. Do not install a custom ROM
: While some paid third-party services claim to provide unlock codes, they are often expensive (~€50) and can be unreliable or outright scams. Hardware Limitations