Huawei Bg2-u01 Custom Rom
One of the most significant complaints about aging tablets is battery drain. Custom ROMs often come with enhanced power management features and the ability to "undervolt" or control CPU frequencies (via kernel settings). By installing a bloat-free ROM, you can often squeeze hours of extra screen-on time out of your aging battery.
If you still have this phone lying around, here is what you can realistically flash via (not TWRP, as most builds break due to partition layout): huawei bg2-u01 custom rom
The BG2-U01 variant is powered by the chipset. This is a critical detail because firmware and custom recoveries must be specifically compatible with this hardware. Official OS: EMUI 5.x based on Android 7.0. One of the most significant complaints about aging