In order to hard reset a Nokia 3555, you should perform the following steps.

Remember! Hard reset will delete all the data on your device; pictures, contacts, messages, apps and more.
Nokia 3555 device will be brought back to the default configuration of a brand new device.


1. Power up the phone.

2. Open the dialer, enter this code into it - *#7370# - and confirm.

3. Device will reset and restart.