In order to hard reset a Nokia 301, you should perform the following steps.
Remember! Hard reset will delete all the data on your device; pictures, contacts, messages, apps and more.
Nokia 301 device will be brought back to the default configuration of a brand new device.
1. Open the dialer and type in this code: 3 + *.
2. Release these buttons when the Nokia logo appears.
3. Confirm the hard reset process. Done.