Once finished, force reboot (Power + Vol Down) and immediately hold Power + Vol Up to enter TWRP. Step 3: Install a Custom GSI ROM Since there are few dedicated ROMs, you must use PHH-based GSIs (e.g., LineageOS, Pixel Experience, or AOSP). Format Data : In TWRP, go to Wipe > Format Data (type 'yes'). Transfer your GSI file to the device. Install > Install Image , choose your ROM, and select System Partition Flash Disable_Dm-Verity
: Some users have successfully tested Android 14 builds on the A01 Core variant. Installation Requirements : To install any custom software, you must first unlock the bootloader galaxy a01 custom rom