Warning: Do not enter any wrong unlock unlock codes on your Samsung GT-B7800 mobile phones. If you enter over a certain amount of wrong unlock codes on your mobile phone, your phone may get hard locked and sometimes become unusable.Method 1:
1 - Switch ON your Samsung GT-B7800 with a
NOT ACCEPTED SIM Card.
2 - Samsung GT-B7800 will ask for "Password".
3 - Enter the Unlock Code.
OR (if the Samsung GT-B7800 shows "Insert Correct SIM Card")
Method 2:
1 - Switch ON your Samsung GT-B7800 with a
NOT ACCEPTED SIM Card.
2 - Don't bother about what's being displayed on your Samsung GT-B7800.
3 - Compose :
#0111*CODE#.
NOT ACCEPTED: We mean, to use a sim card from a network other than the network your Samsung GT-B7800 is locked to.
CODE: Its the unique Unlock Code for your Samsung GT-B7800.
If method 2 does not work, you can try method 2 again but this time without any SIM card on your Samsung GT-B7800.
Each Samsung GT-B7800 mobile phone has an unique unlock code. You can buy the unique unlock code for your Samsung GT-B7800 mobile phone at www.mobileunlocksolutions.com.