SIM unlock code of all Nokia-Lumia is available, means Nokia Lumia 521 can be unlocked easily with unlock code. It is fast and secure way to unlock Nokia Lumia phone by IMEI. You can unlock all Nokia Lumia 521 devices from any network. Once the restriction is removed, you can use all GSM simcards on your phone.
To unlock your phone, we need only 15-digits IMEI. You can find the 15-digit correct IMEI by dialing *#06# on the phone.
Unlocking of the Nokia Lumia 521 by code does not avoid warranty. It is recommended method by manufacturer of Nokia-Lumia to unlock the phone by code.
The unlock code of Nokia Lumia 521 comes from the database of manufacturer or network provider, means it will work 100%.