I used a VIM2 24/7 for about a year, with the firmware shipped on it. Since the first days, I installed the Khadas cooler, without fan.
About 1 week ago, due to the bug related with ethernet connection (I used Wi-Fi before), I just updated it to the newest firmware (v190518), and everything runs OK. The 4K@60fps resolution also worked ok (had some problems on the original firmware).
Now, about 1 week after the update, there are a lot of graphical artifacts, as you can see on this video:
I’m not sure if artifacts are related in some way with the newest firmware, but it worked ok for a week. I tried with alternative power adapter, power cable, HDMI cable and other resolutions, but the problem remains.
Does anyone have a hint about the problem?