355 shows no camera

[DCIM_Support]

Hello,  just imported a few netbotz to struxureware that had been installed a long time ago. They were version 4.4.0. I did an upgrade to 4.6.4 and the camera version showed 4.6.3.  The camera showed, but it was a test screen and not connected.  I flashed to 4.6.2 per another support comment posted before and it shows no camera or test screen and also camera not connected. I upgraded to 4.6.4 and still shows no camera connected. Do I need to turn it on somehow?

(CID:144313523)

[DCIM_Support]

I talked with tech support and flashed the 355 several times and camera still didn't show.  Determined the unit to be faulty.

(CID:144313976)

[DCIM_Support]

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