Camera won't turn on
No matter what you do, you can't get your Camera to turn on.
Hold switch to turned on
Re-insert the battery and Wait 10-20 sec before inserting the battery. Than hold the turn on switch.
Changing your batteries may solve your problem, Batteries for your Camera are sold here.
For more information regarding replacement of the Battery please check out this Guide
Dropped your Camera
If this issue continues and the camera doesn't turn on than its most likely lies in the Motherboard. You probably would need to buy a new Camera.
Good way to do this is Re-inserting the Battery. Waiting 10-20 sec before entering the battery is recommended.
If all the above hasn't solve your problem, you will have to replace the screen.
For more information regarding replacement of Screen please check out this Guide
Replace Internal Battery
The internal battery discharges gradually if the camera is only used for short periods of time. If the camera is not used at all for approximately 3 months, the internal battery becomes completely discharged.
For more information regarding replacement of Internal Battery please check out this Guide.
The first thing you should do is to check the setting and enable the flashlight. This is mostly the case in solving this issue.
Usually if menu/control button doesn't work, the camera could be frozen so restarting the camera may solve the problem.
Replace Menu/Control Button panel
If the control buttons still doesn't work. Than, you would probably need to replace them.
For more information regarding replacement of the Control panel please check out this Guide
Clean the lens
If you are getting blurred pictures. First try to clean the lens.
It is possible that picture is blurred due to insufficient power. Check if this solves the problem.