Why camera doesn't work?

[Android Central Question]

My phone is htc desire 626 plus
Android 4.4.2
After the last update the back camera isn't working but the front one is ok

 

[belodion]

It may be a coincidental failure of the camera module, but try a Cache Partition wipe, and if no go, Safe Mode. If still no go, contact the manufacturer’s customer support to check whether this is a software issue of which they may be aware.