Bellow is shown the exact method to insert the unlock codes for LG GB102 Sapphire

 

1- Power phone on with non-accepted SIM card

 

2- Dial unlock code at network prompt, press ok

 

or 

 

1- Power phone on with accepted sim card

 

2- Dial 2945#*20001#

 

3- Go to menu => settings => security => sim lock code => network unlock code => deactivate => enter sim lock code

 

4- Dial unlock code and press ok


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