UNLOCK MOBILE PHONE LG 510, LG 520

First of all write the IMEI of the phone in the sofware and press the 510/520 button for calc the NCK code.

Then put in the phone a simcard of the actual locked operator and write this code:

2945#*5101#

Now press Menú, 555, Red, Off and write the NCK code previously calculated. Now the phone is unlocked.