Please always Remember, while doing Master Reset Nokia Asha 311 to factory default, the data will be loose, that's why we can do backup all data or important stuff at Nokia Asha 311.
#Option 1, Hard Reset Nokia Asha 310 & 311 with menu setting:
#Option 2, Hard Reset Nokia Asha 310 & 311 with special code / master key / shortcut / secret key :
- Make sure the Nokia Asha 311 on and standby
- Go to menu Setting, then choose restore factory setting > settings only
- It will ask security code, input default security code of Nokia Asha 311 : 12345
#Option 3, Soft Reset Nokia Asha 310 & 311 with special key code :
- Try to type: *#7370# and it will ask the security code of Nokia Asha 311, press 12345
- You also can try type: *#7380#
Please take attention, this option is for soft reset, so Nokia Asha 311 will not removing any important data and installed applications. How soft reset Nokia Asha 311 work: It will recopy or restore the default copy of .ini to Nokia Asha 311.
- Type in the phone : *#7780#