There are many reasons why the camera might fail. One of them could be problems with the SD card. In my case, there were file fragments in the sd card, so I simply reformatted the sd card. What I did is this:
- backed up the photo’s/videos on the sd card AND phone.
- reformatted the sd card
- moved the photo’s/video’s from the phone (if any) into the sd card to make sure there is plenty of storage space on the phone.
Note that there camera data can be stored on the phone and on the sd card. You want to verify that both sources are backed up.
I have not had the problem since.