Hello, if dv-list-devices sees the device with its proper serial-number, which it does here "DVXplorer_DXM00095", then the camera's serial number is fine.
I think the real problem is the "Device can be opened: false", that usually indicates either missing permissions to access the device (udev rules in Linux) or that some other application has the camera open.
The old DV-runtime/GUI opens the device a bit differently than dv-processing (which is where dv-list-devices comes from) and so you get the INVALID SERIAL, but the error is in truth probably the above one.
You might get a better error message in the DV GUI log console.
What system is this? OS and version? Versions of dv-processing and dv-runtime?
It seems you're running old versions of dv-processing and dv-runtime/GUI, we'd recommend to upgrade in any case if possible.
Hope this helps, have a nice day!
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Luca Longinotti (llongi)
Senior Software Engineer
iniVation AG - https://inivation.com/
A SynSense Group company