There could be a few causes to this issue:
-
the firmware you just used to upgrade the firmware was corrupted
-
the firmware or the version installed is bugged.
-
an application prevents you from using the Camera function normally
For the 1 and 2, you will have to either take the phone back to Support Service at Samsung or use Kies and re-flash the firmware on the phone (back up the data first!) and for the part 3, I recommend uninstalling other camera applications and leave only the default one. Secondly, go to Settings > Applications Manager > All tab > Camera. Tap on the app and then tap on Clear Cache, Clear Data, and Force Stop. Reboot the phone and try taking a picture with the camera while using its features.
