Pry off the rubber feet on the bottom. Unscrew the 4 screws. Gently separate the top shell.
Android 10 on RK3228A is often just Android 9 with a themed launcher. Do not chase version numbers. mxq pro 4k rk3228a firmware download
And the son? He bookmarked the firmware page. Just in case. Pry off the rubber feet on the bottom
Do you have the from the motherboard? I can help you find a more specific download link if you do. mxq pro 4k rk3228a firmware download