Hard Reset NOKIA 7310 Supernova
- Start by pressing Power button, device must be working to succeed this operation.

- Pressing Call key will open phone's Dialer.
- Type in this code into dialer. (Codes: *#7370#)
- Factory reset operation needs to be confirmed by clicking green Call key.

- Phone now should restart, after that operation will be done and u can work on device.
How to Hard Rest NOKIA 3310 2017 - Reset Code in NOKIA
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WARNING !
Hard Reset will erase all of your data
All described operations you are doing at your own risk.
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