Originally Posted by Lokke9191
You'd need to root, install a custom recovery (twrp), use titanium backup to uninstall camera. Then boot into your custom recovery and install the camera zip.
Sorry for such a long response time.
I updated the phone to 4.4.3.
Interestingly the back facing camera appears to have started working. The default camera application still fails to open, but when I use another application (Snapchat) and have it set to try the backfacing camera first, everything seems to work ok. However, when I switch to front facing the application says that it can't find the camera.
In addition, the back facing LED has begun to work again as well.
Previously, I had switched out the new rear facing camera (that came with the casing) for the old rear facing camera hoping that it might changes things. I recognize retrospectively that my method of testing was flawed as it seems as though regardless of whether one of the cameras is/was working the application would not open.
Hoping that the replacement of the rear facing had caused it to start working, I swapped out the new front facing camera for the old one. Upon testing, the issues with the front facing camera seem to persist.
At this point I'm not sure how to proceed. The lack of functionality of both front facing cameras (the old and the new) would seem to suggest an issue with the connector on the motherboard if the problem were hardware based. I'm not sure, though, if the problem could somehow be in software.
One software phenomenon that I observed is that as soon as I try to use the front facing camera, the back facing camera stops working again requiring the application to be reset. This occurrence has led me to question the causation between the update and the new functionality. It is possible that in my testing of the device before the update, I had simply been opening the front facing camera and upon seeing it fail, and trying the back facing camera and seeing it fail (because I had tried the front facing camera), that I assumed it was not working.
If you have any recommendations on how to proceed I would greatly appreciate hearing them. If not then thanks for all your help.