[Windows Central Question]

i upgraded my Nokia Lumia 1520 from windows 8.0 to windows 8.1 and i can not use the phone anymore because its permanently on flight mode and i can't connect to my mobile Network. please i wan't Solution to solve this problem.

[sheldon cohn]

Can you reset the phone to default? Then reload with your Microsoft account. You'll be asked to
get a text message or phone call to get a code, once you get the code, you'll need to enter it, so
the phone can get restored.

[RumoredNow]

Try this trick: http://forums.windowscentral.com/nok...tm#post2853178