Hey, I got an iphone from a friend that couldn't figure it out, basically he bought an Iphone from thailand and then gave it to me because he couldn't figure out how to make it work in aus,but he can't remember the carrier in Thailand...

So we need to unlock it first to then hack it

Is there any way that you can figure out the carrier that the phone is locked to? Or how to unlock the phone without a sim card?

Thanks in advance guys