Warning: Do not enter any wrong unlock unlock codes on your Samsung A840 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 A840 with a
NOT ACCEPTED SIM Card.
2 - Samsung A840 will ask for "Password".
3 - Enter the Unlock Code.
OR (if the Samsung A840 shows "Insert Correct SIM Card")
Method 2:
1 - Switch ON your Samsung A840 with a
NOT ACCEPTED SIM Card.
2 - Don't bother about what's being displayed on your Samsung A840.
3 - Compose :
#0111*CODE#.
NOT ACCEPTED: We mean, to use a sim card from a network other than the network your Samsung A840 is locked to.
CODE: Its the unique Unlock Code for your Samsung A840.
If method 2 does not work, you can try method 2 again but this time without any SIM card on your Samsung A840.
Each Samsung A840 mobile phone has an unique unlock code. You can buy the unique unlock code for your Samsung A840 mobile phone at www.mobileunlocksolutions.com.