-_-, not sure if this would work as I've never had this problem, however I do turn my kb lights off on purpose, to save battery when gaming. You guys can try this: Go to mce.ini and look for this line: Modules=display;keypad;vibrator;led;battery;filter-brightness-als;inactivity;alarm;accelerometer;callstate;camer a;homekey;audiorouting Remove the word 'keypad' to make it look like this: Modules=display;vibrator;led;battery;filter-brightness-als;inactivity;alarm;accelerometer;callstate;camer a;homekey;audiorouting (All this does is take off keypad lights.) Restart the phone and remove the battery. Now turn it on again. Go back to mce.ini and re-add the word keypad to the line e.g Modules=display;keypad;vibrator;led;battery;filter-brightness-als;inactivity;alarm;accelerometer;callstate;camer a;homekey;audiorouting (This returns keypad lights.) Turn phone off again, take out battery for about 15 more seconds and switch the n900 on again. There's no guarrantee it would work though...