1. Download LG X220PM Unlock 

2. Enable USB Debugging

3. Connect Phone With USB Cable

4. Run LG X220PM Unlock Tool

5.  

6. When the phone enters the menu, choose Next

7. modem test

8.  (Unlock Test SIM)Check Box 

9. back key (and go to the end of the list)

10. C2K IR Settings

11. Select Network Mode You Want To Use (CDMA Only - GSM-WCDMA)

12. Reboot Your Phone After Steps Complited

Unlock Log

(Enable the usb debugging option to connect the phone)

[*]

[*] Wait For Device..

[*] Device Found OK

[*] Starting Unlock Menu

[*] Unlock Manu Don

(Apply the unlocking steps as follows)

1 - modem test

2 - Unlock Test SIM

3 - back key (and go to the end of the list)

4 - C2K IR Settings

5 - Select CDMA Only And Click Done

6 - Reboot Device Manual

Unlock Done