Warning: Do not enter any wrong unlock unlock codes on your Sagem MC840 M 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.1 - Switch ON your Sagem MC840 M with a
NOT ACCEPTED SIM Card.
2 - Sagem MC840 M will display the message "SIM VERROU".
3 - Enter the Unlock Code.
NOT ACCEPTED : We mean, to use a sim card from a network other than the network to which your Sagem MC840 M is locked to.
WARNING : If your Sagem MC840 M shows "CODE POSTE" it's because a Security Code has been set on the Sagem MC840 M, it can be either 0000 or 1234 but we can't calculate this code with the IMEI because it's not a code from the manufacturer of Service provider but it's a code given by the user of the Sagem MC840 M!
Each Sagem MC840 M mobile phone has an unique unlock code. You can buy the unique unlock code for your Sagem MC840 M mobile phone at www.mobileunlocksolutions.com.