The FET of channel B was damaged. It has been fixed by pico tech. Probably due to applied high DC.

SAMPLE.png I have a picoscope 3206B with 2 channels and was previously working fine. Now channel B is not working is not displaying anything, even if you set the vertical range to auto. I am attaching a printscreen from the oscilloscope. If you put the same input on channel 1 then it displays prope...