I finally managed to boot in Maskrom mode by shorting the clock pin (red circle on the picture) to ground, then loading the loader (rk3528_spl_loader_v1.07.104.bin) and u-boot with rkdeveloptool.

Dear @Werner , I have just created an issue on Github to keep track of this discussion: https://github.com/armbian/build/issues/9446 Is it safe to try possibly unsupported images on the NanoPC-T6 Plus ? It's a relatively expensive piece of kit and I'd rather not take any chances (new LPDDR5 RAM: possibly new memory timings, etc.) Best regards, Samuel

... problem is elsewhere. This is running: sudo dpkg-reconfigure tzdata in CLI (Armbian Noble), choosing region Atlantic, then:

bedna, see - i tried your way on a raspi 3B+ with the last minimal armbian and it worked like your case like a charm - on my Win11 with putty. If you look a bit back to my post with the attached "ssh_debian.txt" - that is what I get when I use a debian as ssh client! ssh client and the odroid ssh server cannot agree on how to connect UNLESS I dumb it down as seen in the command line - and then "1234" is not accepted.. So - armbian "odroid XU4" does not behave like "raspi"!

So I need to know what I have to do to get MIDI messages into my music app that I'm working on. I developed a cli synth app on Manjaro using SDL3 and Jack. Jack I used to connect to MIDI aka 'MIDI-Bridge' or MIDI Through and an external program to produce MIDI messages sent to MIDI Through. I am currently trying to do the same on the actual device I wish to use which is the OrangePi 4 LTS I have spare with just bare bones Armbian Server, no desktop. I have audio working through Pipewire. I am used to Jack just being available because Pipewire intercepts and handles the calls behind the scenes. I noticed that on Armbian I think I have to use the 'pw-jack' program or jack-play goes into an eternal and uninterruptible error loop (I have to kill it through another terminal). Note: I am developing this program in Zig. Am I doing all of this the wrong way? Is there some system process I have to start? Or something I haven't installed?