We currently do not have any unlocking instructions for the Fujitsu f671i mobile phone.
We are working towards finding the unlocking instructions for the Fujitsu f671i mobile phone. If you know the unlocking instructions for the Fujitsu f671i mobile phone and would like to help others who are trying to unlock the Fujitsu f671i mobile phone, please send us the Unlocking Instructions.
You can however still try the following method to unlock your phone. Let us know if it works.
1 - Switch ON your Fujitsu f671i with a NOT ACCEPTED* SIM Card,
2 - Enter the Unlock Code.
*NOT ACCEPTED : We mean, to use a sim card from a network other than the network your Fujitsu f671i is locked to.