Powkiddy A20 Custom Firmware [NEW]
lacks a dedicated, "ready-to-flash" custom firmware like ArkOS or AmberELEC.
RetroRoller (a Linux-based OS for RK3128 devices) is the closest you will get to CFW. Some users have flashed the RGB20 version of RetroRoller onto an A20 SD card. powkiddy a20 custom firmware
Disclaimer: Installing custom firmware involves risk. Always ensure you have backups. The author is not responsible for bricked devices, though the RK3128 chip is notoriously difficult to fully brick. lacks a dedicated