Factory Unlock Question

[Mr D]

If your phone is factory unlocked with the version right before iOS 6.0 (iOS 5.x.x)... will you still have the unlock when you update?

 

[JuneBugg]

It should. There are a lot of Posts/threads confirming it. I'm actually trying to find a thread on here that talks about iOS 6 on a T-Mobile (factory unlocked) iPhone 4 and if any problems were found.

 

[planktons]

Yes. Definitely. When you activate your phone, the UDID is checked against Apple's database to see if it's unlocked or not. That doesn't depend on what version of iOS you have.