If the box enters recovery mode, select the option to "update from EXT" and then "from SD card" . 3. Finalize the Setup

Download the specific Android 7.1.2 Nougat firmware image compatible with your processor, such as the AMLogic S905X or S905W .

After booting into Android 7.1.2:

: The specific .img or .zip firmware file for your board version. Crucial: You must check your internal board version (e.g., RK3228A or Allwinner H3) before downloading, as using the wrong firmware can permanently brick the device.