Make sure you press the ON/OFF button firmly. Do not press it too quickly, otherwise the camera may not respond. If the camera power still does not turn on or off, press and hold the ON/OFF button for at least 7 seconds.
If the camera power is not turning on make sure the battery is charging correctly.
The camera may require service if the suggestions above do not resolve the issue.
For all Sony products (EXCEPT VAIO computers): To send your product to a Sony facility to be repaired or to check the status of the a repair, visit our eService web site.
For VAIO Computer products: Please call 1-888-4SONYPC (476-6972) for service information for your product. To check the status of your VAIO product repair, have your phone number or Best Buy service number available and call 1-800-433-5778.