[AT&T Lumia 640] Unlock without sim

[Arunkumar Soundararajan]

Hi Friend

I have a Nokia 640 Go phone with ATT and would like to unlock it

Can you tell me if the unlock procedure at for Nokia 640

Steps that I followed

1. Put in a non ATT sim
It directly asked for the unlock code - no choice but to exit

Next,tried using a ATT sim

1. Keyed in ##7820#
2. Prompted to enter the unlock code.
Where do I get the code from? Can you please explain the process clearly.

Arun

 

[libra89]

http://forums.windowscentral.com/ge...scussion-lounge/398173-unlocking-t-phone.html

Check out that thread ^