Warning: Do not enter any wrong unlock unlock codes on your Cingular 3100 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 Cingular 3100 with a Not ACCEPTED
2. If your Cingular 3100 asks for a PIN code, then enter your SIM card PIN and press OK.
3. Cingular 3100 will ask to enter an "unlock code".
4. Enter Unlock Code we send to you.
5. Your Cingular 3100 is now unlocked.
: We mean, to use a Sim card from a network other than the network your Cingular 3100 is locked to.Each Cingular 3100 mobile phone has an unique unlock code. You can buy the unique unlock code for your Cingular 3100 mobile phone at www.mobileunlocksolutions.com.