Flashed the current Star_offtime. Now mode switches work.
Now I’ve found something else. The light will not turn on if the supply is >4.1V
If i switch it on at 4V the voltage can be raised without the driver shutting down(Tested to 9V(driver gets 5.1V from Zener).
Is there some overvoltage protection in Firmware?(found nothing on the first look)
Low Voltage protection works as expected, although resistor values need to be changed for multicell operation.
At 4.1V the divider output is a 0.73V(should result in an ADC value of around 170)
4.3v is fine, as is 5.1v. The problem is that the board layout doesn't work well with the zener diode. You need to put the 10uF capacitor in parallel with the zener diode. Unsolder it from the current location and solder it to the zener pads then stack the zener onto the capacitor.
v044 is the same circuit as the earlier revisions. The capacitor is closer, which can help in some instances, but in my testing that still doesn't work 100% of the time.