Has any of the boards ever failed with the unable to shutdown symptom after a few minutes of normal operation? Initial investigation D101 seem to have failed short.
My kit also had q103/q104 short. This was after I did the current limited power up and the current went up to 180ma. I then discovered rev H of the assembly manual describing the issue. I then removed the short and the rest went as described. I then proceeded to check cw rx and tx function all good. I then proceeded to check digi modes and plugged in the USB. Wspr was received normally. I shut it down or maybe power cycled because I needed to move it to another usb port and the symptom appeared. USB does not detect a device and the qmx powers up shows welcome screen, 20m and after a few seconds "shutdown!".
