How do I make 4.1 sim free?

[bitanai]

Just bought iPhone 4.1 in the USA and tried to use it overseas.
How do I make the 4.1 sim free?
Thank you!

 

[iGaz]

You need to jailbreak and unlock. Unfortunately 4.1 can't be unlocked at the moment. It's just a waiting game until the devs work something out...