You might want to try to factory reset it.
To perform a Factory reset on your camera, follow the instructions below: If using an SD card with the camera, remove it before proceeding. Leave the unit plugged in and power on. Press and hold the setup button on the bottom of the unit for 20 second. Allow at least 30 seconds for unit to initialize, in some rare instances this process can take up to 5 minutes. The LED on the back should move from Solid Yellow, to Blinking Yellow The device is now ready to be setup once again.