Apple has just released IOS 5.1.1,now every idevice owers are waiting for the untethered jailbreak of this firmware.Pod2g is working hard to find the required exploits to untether jailbreak ios 5.1. A4 devices on ios 5.1.1 are jailbreakable but still tethered with redsn0w 0.9.10b8b [Mac & Win] but A5 devices are not yet jailbreakable.
how about unlocking iphone 4s on ios 5.1.1 using gevey ultra? Is it ok to upgrade to iOS 5.1.1 and keep the unlock status?
“Good news! If you are currently using GEVEY Ultra S GSM to unlock your GSM iPhone 4S on iOS 5.1, you CAN upgrade to iOS 5.1.1″
this means answer is yes you can upgrade your iphone 4s running ios 5.1.1 and unlock it using Gevey Ultra S interposer.
the most important thing is you don’t need jailbreak ,so upgrading to iOS 5.1.1 will not affect the unlock status, so feel free to upgrade and enjoy your unlocked iPhone 4S. But don’t forget that there is no jailbreak declared yet for A5 device so u cannot enjoy the cool features of jailbreak device.