What is the formate code of nokia 3110 - Nokia 3110 Cellular Phone

Here’s how to hard reset or format your Nokia mobile phone:
1) Switch off your phone
2) Press and hold these 3 keys together:
-green dial key
-the star key(*)
-the number 3 key
3) Power on the phone

Warning: Do not release the keys until you see a formatting screen and even after the phone has started. Wait until the initial sound starts to play and the hand animation is displayed.

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*#7780# and the code is 12345