In our description database there are 3 solutions for performing hard reset for Nokia 3720 classic.
Choose the first method and follow the steps to perform a hard reset. If the first solution does not work, try the next method.
Please remember! Hard reset will delete any and all data your device contains; like pictures, contacts, messages, apps etc. Everything. Nokia 3720 classic device will be brought back to the same configuration as that of a brand new device.
1. For starters, turn on the phone.
2. Next, press Menu button and go to Menu > Settings > Phone > Phone Management > Factory Settings > Delete Data and Restore.
3. Finally, press Yes to confirm the operation. Well done, the hard reset is complete.