This could have one of three reasons:
- You have a new camera module but run an old operating system. → Update your OS or check the updater app to see which OS version you are running and compare it to the oslist.
- Your camera module is not connected well. → disassemble the camera module and clean the connectors before putting it back again.
- Your camera module is not working. → Only support can help you.
Please continue here and check the first post there to get some tips.
If they don’t answer in the next days give them a call and have your ticket number ready as well as your IMEI and order number if you didn’t yet include them in the support ticket.
PS: Since the camera issue seems solved now I’m setting this topic to auto-close in a few days. For the random reboots please continue in the topic I linked above to avoid duplicate threads.