In order to hard reset a Nokia 3110 classic, you should perform the following steps.

Remember! Hard reset will delete all the data on your device; pictures, contacts, messages, apps and more.
Nokia 3110 classic device will be brought back to the default configuration of a brand new device.


1. Turn on the phone.

2. Open Menu > Settings > Restore Factory Settings.
3. Enter the lock code - 12345 is the default code.
4. Voila.