DMM can't detect voltage range above 6V!

[M.David]

Hello,
I have a cheap DDM called RICHMETERS RM102 (here's a similar DMM reviewed on the EEVblog: youtu.be/xdGQEVdxmQQ ).
When I try to measure any voltage above 6V it can't detect the range and it will try to find it but it can't.
Here's a video for the problem: https://imgur.com/a/FSjZ7Gf

[mikerj]

Open it up and take a close look at the PCB for damaged or badly soldered components, or evidence of components that have fallen off the board.

[tpowell1830]

See if it works if you turn off AutoRanging. If so, it may be a software issue.

Hope this helps...