which provides a custom ATV 11 ROM for RK3328 and RK3318 devices. Manufacturer Specific: If you are using a Firefly ROC-RK3328-PC
To bring Android 11 to life on your RK3328, you usually have to perform a "flashing ritual": : You'll need the Rockchip Batch Tool FactoryTool The Connection rk3328 firmware android 11 link