Nokia 500 hard reset
Turn off your phone. Plug in charger and charge it fully. Do not plug out the charger. Try this key combo: press CALL + both Volume + Lock + power ON together. Leave comment. If your screen is responding also try to dial *#7370# or *#7780#
OR Press volume UP key then green call key then lock key and press power red key. It is possible that it won't work.Restore original settings
If your phone is not working properly, you can reset some settings to their original values.
1 End all active calls and connections.
2 Select Menu > Settings and Phone > Phone management > Factory settings > Restore.
3 Enter the lock code.
This does not affect documents or files stored on your phone.
After restoring the original settings, the phone switches off, and then on again. This may take longer than usual.
After resetting, the device may take a longer time to switch on. Documents and files are unaffected.
Your documents and files will be deleted in the reset, so back up your data first.
• Update your device software regularly for optimum performance and possible new features, as explained in the user guide.
Remove all content and restore settings to the default values
1 Back up the content you want to keep to a compatible memory card (if available) or to a compatible computer.
2 Close all active connections and calls.
3 Select Menu > Settings and Phone > Phone management > Factory settings >
Delete data and restore Nokia 500.
4 If prompted, enter the lock code.
5 Your phone switches off and then on again. Check carefully that all your personal content, such as contacts, pictures, music, videos, notes, messages, mails, presentations, games and other installed applications have been removed.
Content and information stored on the memory card or SIM card is not removed.