I'd love if this worked for me, unfortunately, my camera app isn't working either.
The flashlight icon is greyed out, as was the OP's issue, but I've got the added bonus of the camera app freezing up as well. The screen is blacked out. I can turn the flash settings on or off or auto, and the HDR settings on and off as well. If I try to take a picture, though, nothing happens. If I try a second time, none of the options (camera button, HDR, flash, switching to front facing) work and the app is frozen.
I can switch to the front facing camera sometimes, and other times it'll make the app freeze as well.
There are many others with this issue, and I've scoured the forums, but nothing works. I've tried:
- closing all programs
- Restarting the phone
- Hard reset (lock and home buttons)
- Installing a 3rd party app
- trying to take pictures with the normal app with the flash on
I don't want to fully reset my phone to factory settings, as nobody I've seen with this problem on the forums has fixed it this way. The camera I might be able to live without... The flashlight... It's more useful than one would realize!
EDIT:
Turns out that the flashlight works, as long as I have something else open (like Chrome). No luck still with the camera, but at least I can see in the dark again!