To unlock an AT&T iPhone 4S on Windows, you must follow the official carrier unlock process, as there are no functional software-based unlocks (like ultrasn0w) for the baseband on this model. 1.

In a first for US wireless carriers, Sprint and Verizon Wireless will allow iPhone 4S customers to unlock their mirco-SIM card slots, which enables use on wireless networks around the world, reports ...

Yes, it is true that you can factory unlock an iPhone 4s online. The most reliable and official way to do this is through the cellular carrier the phone is currently locked to. Most carriers will ...

I’m pretty close to buying an unlocked iPhone 4S, but have a couple of questions. I’ve done some research and haven’t really found any answers (or found conflicting answers), so thought I’d turn to ...