How is your battery charge? Did anything happen to the camera i.e.getting dropped, water exposure etc? could be that you need a new battery. Is it charging in a external charger and does the charger work. You might want to check that with a multimeter to eliminate the battery as a culprit.From what I found out there may also be an issue with the lens motion strip and that could cause your cam to act up. Do you have any error code beeping from your cam?