How di I unlock my Lumia 535 for to use any card my phone now is block?

[Windows Central Question]

how to unlock my lumia 535 for to use any card my phone now is block

i buy my lumia 535 when i as travel to swistzerland but now i live in russia when i push russian card is ask me the unlock code

 

[charlatan1978]

Re: how to unlock my lumia 535 for to use any card my phone now is block

If your previous contract has expired and you don't owe any money, your phone provider may unlock it for you for free.
Other than that you will need to pay for an unlock code, i.e. freeunlocks.com.
Although I have never tried them.