Hello!
I have problem with DSO138 scope kit. Software seems to boot normally. Then the grid appears for a moment, but there is no signal waveform. Next the screen gets white and osciloscope is not responding. Symptoms are exactly the same as in the clip:
https://www.youtube.com/watch?v=Mecaorm ... e=youtu.be
All voltages seems to be OK. There is no bad soldering or shorted pads on PCB.
Thank you in advance for your help.