The phone will ask for confirmation. Press the Call/Green key again.
Press and hold the Power button to turn the device off completely. How to Hard Reset NOKIA 5310 2020 Dual SIM
You will see the welcome setup screen. Your Nokia 5310 is now reset. Method 2: Soft Reset via Settings Menu (For working phones) Use this method if you can still unlock the phone and navigate menus. The phone will ask for confirmation