Flashing an Unlocked Lumia 1520 from AT&T

[Carlos Benavides Marroquin]

Hi:
I am about to flash my Lumia 1520 because it keeps on the airplane mode, my question is: It will become Locked after the flashing process?, any idea?.
Thank you very much.
Carlos

 

[pankaj981]

Flashing does not lock phones.