When I press the lock key button on my Samsung Wave 525 it asks if I want to turn on or off, then it automatically restarts. This happens continually. How do I fix this?
Try resetting your phone to factory state.
My sister was having this phone, it was good phone but try going to Customer care,they will help you to solve out this problem. May be can the software issue.
Try going to Settings/Security/ see if there is any settings for lock key