You will need
  • the Nokia.
Instruction
1
Click on the top button "House", then select the "Settings" tab and go to a choice of modes. Change offline mode on normal.
2
Unplug the phone, pull the SIM card. After a short period of time insert the SIM card into the provided for this purpose in the telephone place. Reboot the phone and try to change offline mode on normal.
3
Take the phone to a service center, if all attempts to switch the device from offline mode to normal were unsuccessful.