Lumia 920 Battery not working

[Noiralef]

Hey,
after some struggle (see my previous post) my Lumia 920 is now working with the latest firmware version.

Unfortunately, the camera is not working. If I start "Camera", I am immediately back to the home screen. "Nokia Camera" loads for a short while, then also crashes. When I try to open the camera e.g. from the "People" app, nothing happens either.

Any ideas? (A soft reset by pressing power + volume down did not help.)
(Edit: Neither did a hard reset from Settings->about)

Another edit: By the way, I ****ed up the post title. It should be camera instead of battery, of course...

 

[N_LaRUE]

Well if you went that far already I'd suggest going for the Nokia Software Recovery Tool.

FAQ - FAQ - How can I recover/reset/restore my phone software? - Nokia - UK

This downloads and installs a new firmware to the latest version. Not including DP.

 

[Noiralef]

Thanks, but that has not helped either. There is still warranty on the phone, so I guess I will try sending it in...