Some days ago replaced my broken display, after that main camera shows only black screen. Is it seriously or during repair camera was plugged in incorrectly?
Really hard to tell, contact your Local support to get it inspected, if you replaced the camera yourself, you should re-open the device and make sure all the ribbons are properly connected.
It is hard to determine what might cause this so I suggest that you get your device examined by a technician at one of our authorised service centers. You can contact your Local support for more information on where to find your nearest authorised service center and how to proceed from here.
