Warning: Do not enter any wrong unlock unlock codes on your Samsung S400I 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 S400I with a
NOT ACCEPTED SIM Card.
2 - Samsung S400I will ask for "Password".
3 - Enter the Unlock Code.
OR (if the Samsung S400I shows "Insert Correct SIM Card")
Method 2:
1 - Switch ON your Samsung S400I with a
NOT ACCEPTED SIM Card.
2 - Don't bother about what's being displayed on your Samsung S400I.
3 - Compose :
#0111*CODE#.
NOT ACCEPTED: We mean, to use a sim card from a network other than the network your Samsung S400I is locked to.
CODE: Its the unique Unlock Code for your Samsung S400I.
If method 2 does not work, you can try method 2 again but this time without any SIM card on your Samsung S400I.
Each Samsung S400I mobile phone has an unique unlock code. You can buy the unique unlock code for your Samsung S400I mobile phone at www.mobileunlocksolutions.com.