Software version 6.68 11-05-09 RM-496
I had changed my navigation keys, so that when I pressed the right navigation key it opened the camera from the main menu. Then, while in camera mode, if I pressed the right button (to go to video mode) the camera went into standby and I couldn't get out of standby without restarting my phone. Well, I changed the navigation button, so pressing up from the main menu went to camera and right went to mms. Now, i can press up, down, left, right and it works just fine, no standby mode!
Hope this helps.
i hv also done dis problm....unlock the keypad and remove the back cover of phone...and hit lightly u r camera and put the bettry out and after sm time swith the phone on.and camera dont go to standby mode..try 2-3 times its working...