Maybe a handful, I have most SBC's equipped with one permanently. And needed for Arduinos etc, you can even power tiny old things like RPI0/1 with it (if you connect red wire to 5V pin as well). In the meantime, you might think about some previous U-Boot and previous kernel. For quite some SBCs, there is trouble when U-Boot is new/mainline/releasecandidate and kernel vendor. I am currently also doing some tests on my NanoPi-R6C (RK3588s) because HDMI is not initialized fast enough (by U-Boot). And with 6.1.115 vendor kernel really choppy mouse updates and green tint, not complete flat green luckily, I can still see icons and mouse.

Hey @Sergey Lepeshkin, thanks for the fast reply. I will check what you mentioned. I was thinking, could i modify the recovery.zip from the recovery partition so when it reflashes it gives the box "su" rights? that would be via software and no need to connect wires. If my idea is not possible, i will keep trying with the UART. Thanks for the advice.

Nothing is working and the device did not boot sun50i-h313-tanix-tx1.dtb sun50i-h313-x96q.dtb sun50i-h313-x96-q.dtb sun50i-h313-x96-q-lpddr3.dtb sun50i-h313-x96-q-v5.1.dtb

I managed to run Armbian, everything seems to work except the WiFi, which is module KM3306005. Any idea how to fix it?

I'll have to order a USB serial cable based on CH340. Give me a few days and I'll have those logs for you.