Camera don't have a reset. It may have to go back to Nikon for repair. For a cheap point-and-camera it would be cheaper to just buy a new one but the P510 is not a cheap model so having it repaired is worthwhile.
The information on Computing.Net is the opinions of its users. Such
opinions may not be accurate and they are to be used at your own risk.
Computing.Net cannot verify the validity of the statements made on this
site. Computing.Net and Compnet Ventures, LLC hereby disclaim all responsibility
and liability for the content of Computing.Net and its accuracy.