However, the RK3229 is not an Allwinner H3 or Amlogic S905. It is a platform. Here is everything you need to know.
The RK3229 is the – ugly, slow on paper, and mechanically weird, but nearly impossible to kill. For $15 (the price of a used box on eBay), you get hardware-accelerated PS1 and flawless 2D arcade gaming. emuelec rockchip rk3229
If you tell me the of your TV box (e.g., MXQ 4K, HK1 Mini), I can help you find the exact DTB file you need to get started. However, the RK3229 is not an Allwinner H3 or Amlogic S905