Mobile phone question

[TradeNurkicNow]

Hey guys,

So I have a cheap ass AT&T phone with a sim card that just crapped out. My friend has an old Galaxy SII lying around that he doesn't want. So my question is, how do I unlock the SII so I can use my AT&T sim in it? I am not up with the times on phones.

Thanks, yo

 

[SlyPokerDog]

What carrier did your friend use?

 

[EL PRESIDENTE]

You might have a different sized sim

 

[TradeNurkicNow]

it's a TMobile phone, i guess. it's the same sized sim

 

[SlyPokerDog]

https://www.google.com/#q=will+a+tmobile+s2+work+on+at&t