DSO138 Oscilloscope Counterfeit or Original

I purchased a DSO138 Oscilloscope which was pre-assembled only to find out that it had problems and it was a Counterfeit.

[@aerotro]

Cool video Kenn, the trace line problem might be because the voltage is dropping slowly or thermal instability check to see if anything is getting hot to see if a heatsink can help stabilise it !

[@inspiredtiny]

Hi! Have you tried uploading the firmware on the old firmware?

[@arthurfricchione8119]

I’ve just purchased and built my 2nd one and have issues again. Everything seems to work almost but I get no square wave test pattern and I get no trace line. It seems to be locked in across the top of the screen. Any ideas why? I’m quite sure I installed all components correctly I’ll check again today. Wish they used better quality hardware but that’s just what you pay for. It’s not a clone but maybe the main chip is. FRUSTRATING but I’ll keep troubleshooting 👍 Artie