I have a Dev term a06 and have been having problems with the newer releases based on kernel 6.x. After booting one of these, the display does not have backlight or any text/image displayed. On the last 5.x it boots and works fine. I have not yet tried the HDMI output on the 6.x versions, need to get an adapter, but I'm guessing that the built in display is not discovered. The Dev term does not normally have a serial port, I'd need to solder up an adapter, or I would have looked at it to see if anything was happening.
Any suggestions for a very basic Linux user to try? Especially something I can maybe edit after flashing (before first boot). I should be able to get a Linux image up on WSL if needed to read/write the card. I had Kali on WSL, but it broke during an update, but shouldn't be too hard to stand up a new VM.