W910 Camera Not Shooting Pictures?

Hello everyone i got a w910i and it had a screen problem so after getting back from repairs i reflashed it into R1FA037 firmware and everything is fine EXCEPT that the camera does not shoot pictures... while in camera mode if i click the centre joystick or the camera button on the side nothing happens.. it just restarts the camera or just says saving for short time and nothing happens... sometimes it does work but rarely...THE VIDEO MODE DOES WORK FINE ITS ONLY IN PICTURE MODE

i do not know if this is because of the firmware as i do not use camera alot and dindt really bother to test the camera


what can be the problem and how can try to solve it, preferably for now without reflashing again

thank