I had the same problem.? The H4 would not start but 1 time in 10.? and froze under computer control.
I put small nylon washers on the mounting screws as spacers to keep the case from touching the screen.
Also had to file out the hole for the USB-C cable.
Works great now.
Terry
W0ASP
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On 4/27/20 8:46 AM, hugen@... wrote:
It looks like your NanoVNA-H4 that we sold earlier has a distorted case,
you may need to loosen the screws on the back to start properly, we have
fixed this issue, you can contact us for a new case. Sorry again for our
mistake.
hugen
