Hi Mike. I know this might be a bit late as its 2023 now but I have loaded ETHOS on to my Jumper T16 and report back the same issues as you have. However with a bit of playing around I noticed that on boot up(when the 6 pos switch was on 1) that as you said previously,the sliders, right hand pot and main batt voltage would not work/calibrate etc..However when i push 3 or higher on the 6 pos switch they all work and are useable. The main battery is correctly read and low batt alarm works.Of course after reboot when position 1 is defaulted you have to push buttons 3 to 6 to get the features. Note nothing dangerous on the channels and operation /mixes etc is noted and is stable and only if you need the sliders etc you can push the button etc..I push it anyway for main batt monitoring. I use an XJT ext module or my IRX4 plus on PPM for transmission for my boats...One other note...the RTC seems lower voltage and could be unduly drained more than normal but is not really a concern for me...Chris.