Invalid serial number

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Matthieu Arzel

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Oct 8, 2025, 4:05:01 AM (3 days ago) Oct 8
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Hi,
I have an issue with a DVXplorer Mini.
It seems that the serial number was modified by a student during lab sessions, since the dv-gui cannot connect to my camera. It generates an error "INVALID SERIAL NUMBER" .
When I list the devices, I get this :
$ dv-list-devices --verbose
Device discovery: found 1 devices.
Detected device [DVXplorer_DXM00095]
- DVXplorer (type 8)
- USB busNum:devAddr: 2:10
- Device can be opened: false

Nevertheless, I can access the camera with a Python script. dv.io.camera.open() works correctly.

Is there a solution to reset the serial number to its original value so that dv-gui recognizes the camera?
I tried flashy, but with no success.

Have you got any hints?

Regards,
Matthieu

Luca Longinotti

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Oct 8, 2025, 5:09:01 AM (3 days ago) Oct 8
to dv-u...@googlegroups.com
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!
-- 
Luca Longinotti (llongi)

Senior Software Engineer
iniVation AG - https://inivation.com/
A SynSense Group company
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