Q: iphone 5s rear camera stop working

I'm using i phone 5s from the last 8 months using ios 8. In iOS 8 there is no any problem accept touch ID.

But from the last 2 weeks i just try to update my ios 8 to ios 9.2.And then iOS 9.2.1.

My iphone rear camera stop working.

After that I recover my iphone , reboot, restore and reset all contents and settings etc, toggling low battery mood and all that each an every thing.

Its not a Hardware Issue.

Still my iphone rear camera not working.

I'm afraid.

Please help me.

any solution