Bellow is shown the exact method to insert the unlock codes for LG E900 Optimus 7

 

1- Power phone on with a non-accepted SIM card


2- Phone will request Enter PIN Code or Insert Approved SIM card


3- Insert unlock code and press OK
OR
1. Power on your phone with the original SIM card
2. Enter 2945#*900#
3. A menu will pop up, select Unlock USIM then Network
4. Enter code Sent and press ok

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