How do I unlock a Lumia 521?

[Windows Central Question]

unlock lumia 521

i have GSM sim , how can i unlock nokia lumia 521 - from usa T - mobile
at free cost

 

[N_LaRUE]

Re: unlock lumia 521

Contact T-Mobile and see if you can get the unlock code. That is the only way to do it for free.

 

[Suann Guab]

Re: unlock lumia 521

how to unlock free Nokia Lumia 521

 

[N_LaRUE]

Read the post above you. There is no other way to do it for free.

 

[Jamaine Brown]

Re: unlock lumia 521

i have GSM sim , how can i unlock nokia lumia 521 - from usa T - mobile
at free cost