Unlock Galaxy S2 LTE GT-i9210 - How to Unlock Samsung Galaxy S II LTE i9210
Here is a Customer Unlocking Example of the Samsung Galaxy S2 GT-i9120
1. Input a non accepted simcard into the phone.
2. If asked Insert the "Network control key" or "Unlock Code"
3.The phone will ask you to enter the unlock code.
4. Enter the unlock code. Your phone is now unlocked.