Warning: Do not enter any wrong unlock unlock codes on your Siemens ST55 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 Siemens ST55 with a
NOT ACCEPTED SIM Card.
2 - Compose :
*#0000*CODE#.
(
OR)
1 - Switch ON your Siemens ST55 with a
NOT ACCEPTED SIM Card.
2 - Compose :
*#0001*CODE#.
NOT ACCEPTED: We mean, to use a sim card from a network other than the network your Siemens ST55 is locked to.
CODE: The unique unlock code for your Siemens ST55.
Each Siemens ST55 mobile phone has an unique unlock code. You can buy the unique unlock code for your Siemens ST55 mobile phone at www.mobileunlocksolutions.com.