While a full custom ROM is likely off the table, you can still perform less-invasive customizations to improve your MatePad 10.4 experience.
Activate Developer Options > Enable USB Debugging > Use ADB commands to uninstall packages. Summary of the Current Landscape Feasibility (2026) GMS Access? Risk Level Custom ROM Almost Impossible Extremely High (Bricking) GSpace/VMOS Aurora Store ADB Debloating No (Fixes bloat) Conclusion huawei matepad 10.4 custom rom