I had encountered the same problem.Official images' driver were too old and customized.That means you can't change the DE easily.Have a try on Armbian Edge(mainline panthor instead) or build an Orange Pi OS by yourself.Github link.

@qq20739111 I have this patch included in my latest build. I wonder if this will change the cooling and performance. I'll release a test image so you can perform a benchmark on it. I only have a heat sink and fan for the A7A right now. https://github.com/radxa/allwinner-device/commit/7716c3aacfe0ca4432ad3973ec7ea864d2b91195

Excuse me for asking, I'm a total noob when it comes to TV boxes. But how do I install this on a ROM? I have an Android TV ROM that works fine but without Wi-Fi.

No, just plain 100MBps eth.

@jock hi, I have the same box same prb, I used your multitool , same prb black screen like images from ophub, or I created IMG multitool in wrong way, I'm newby in this, plz I want a step by step. Or tutorial I will thankfull Have a good day