If you need to unlock a Nokia 521 Lumia from home, you should call the network provider who has sold you the device, it is the only way to acquire the unlock code (network PIN) completely for free, you must end the contract and you must be the device owner. When you have not obtained the unlock code because you do not fulfill the carrier requirements, you can prompt the unlocking on our website.
Don't get complicated, the best way to calculate the unlocking code is our servers, when inserting a new SIM card from another carrier your device will prompt the unlock code. You need get the unlock code filling out the form and making the payment, shortly you will receive an email with perfectly detailed instructions on how to enter the unlock code.
It is important to note that a Nokia usually has five attempts to insert the unlock code. If the attempt counter is zero, our unlocking code will not work on your 521 Lumia. The solution will be to reset the mobile phone by cable, but it has a higher cost depending on each model.
Certainly not, our unlocks are official and forever, you can update Android without any problem.
Unlocking method is for any SIM card of 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 from USA and any other country.
If the 521 Lumia accepts the SIM card but does not allow you to send or to receive any call, it could be because the IMEI is blacklisted due to loss, theft or unpaid bills. Even if SIM unlocking is achieved, it is necessary to fix the IMEI problem contacting the carrier.
1. - Turn on the handset on with a SIM card not accepted by the device (your new network operator)
2. - If the card has a PIN number, enter it and press OK.
3. - The device will prompt: “PIN UNLOCK”, Now enter the code and press OK.
4. - Your cellphone will indicate: "The operation was successful", becoming permanently unlocked.
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