When you insert a SIM card from another network provider on the news Nokia devices (with android OS), the phone should request the SIM Network unlock PIN if is locked. It means that the Nokia needs to be unlocked from the service network with the SIM lock code.
If you are the device´s owner and have fulfilled the contract, you can contact the network provider to request the unlock code for free, if you do not meet these requirements you can purchase us the SIM Lock code in hours.
The latest models, the Nokia Lumia, only offer three attempts to unlock them, so it is highly advisable that nobody manipulates the phone before contracting our IMEI unlocking system.
If the phone indicates “Cannot undo restriction” or “Not allowed”, this means that the attempts have been exhausted and the telephone should be repaired and reset by cable.
However, if it indicates “SIM restriction off” and it restarts, the phone has been correctly unlocked by code.
You can unlock your blocked Spectrum, C Spire, AT&T, US Cellular, Cingular, Cricket, Nextel, Sprint, T-Mobile, Verizon, MetroPCS, Tracfone, Boost Mobile, Aio, Net10, StraightTalk, H20 Wireless, Simple Mobile, Virgin Mobile, Family Mobile, Xfinity Mobile, Viaero, Total Wireless, Ultra Mobile phone from USA, and then use any SIM card from any country or network.