power_yura I'm not aware of any such tutorial. Procedure also depends if you want to use Armbian with mainline or BSP kernel. Additionally, if you would like to use mainline Armbian, you would have to keep kernels and dtb files separate because both projects contain a lot out of tree patches, which may not be compatible.
Hi jernej it's knowing bugs on opiplus2e in 2 last update
Is this based on last nightlies? If so, please wait for new update which should be available in about a week at most. There is a lot of video related fixes. If it still won't be fixed by that, then I will ask you for some information. But let's wait for updated image first.
ukmark62 Nice! Did you manage to capture some UART traffic already?
I'm not sure how much you know electronics, so I apologize if this is too basic for you:
At the end it doesn't matter which GND pin you use, if it's really GND. Be aware that those two pins could also be CTS and RTS signals being low most of the time or some other signals. GND pin can be usually visually identified by checking if it is connected to ground plane, which is also the reason why you need a bit more heat to solder anything to them (ground plane acts as a heatsink). Another method is to put one probe on something which is really ground, like negative contact on power connector or shield (ring) around screw hole, and then with other probe check continuity on GND pin candidates.
faredgeoffate You are probably using OrangePi 3 image? Be aware that they are not completely compatible. I would have to check differences in schematic. Images will be available for OrangePi Lite 2 too, eventually.