How to Unlock the Nokia Lumia 1020

1.  Switch ON your Nokia Lumia 1020 phone with a non-accepted SIM card.
2. Nokia Lumia 1020 will ask you to Enter Unlock PIN.
3. Input the Unlock Code (can be 8, 16 or 20 Digits).

If you see code like this 12345678901201928394/495839485940394839405 It's two different code(12345678901201928394 and 495839485940394839405), try them both but only one will work.

For Nokia Lumia 900 from AT&T USA, if code is NOT working:

The workaround is this: Enter the incorrect code until you run out of your ten (10) attempts. Then you'll get the *real* network unlock message, with 32 attempts. Enter the same 8-digit code you've been entering,

Watch: http://www.youtube.com/watch?v=8SO5ZXQy1zM

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