the iphone is from att and am looking to put it onto tmobile and the phone is not under contract and was under att next
iOS 5 will be compatible with iPhone 3GS as well as iPhone 4.
The iPhone 5 will run iOS 6 or iOS 7.
This was created to add support for the Verizon iPhone. No device uses it except the Verizon iPhone 4, as the same feature was added to iOS 5, and the iPhone 4S included iOS 5. It is essentially iOS 4.2.3 for Verizon.
To jailbreak an iPhone 4 you need to download redsn0w. For better info go to youtube and search ' how to jailbreak iPhone 4 on (whatever your OS is .example: IOS 5).'
Any iPhone, iPod touch, or iPad that is using iOS 5.
Ya you can jailbreak most ios firmware except 4-3-4 & 4-3-5 & 5-0
The current latest iOS version on the iPhone 4S is iOS 6.1.3 considering iOS 6.1.4 is for the iPhone 5 only. iOS 7 will be available for the iPhone 4S this fall.
Since ios 7 is designed for the iphone 5, it will probably make the iphone 4 slower.
You cannot. If you buy a new iPod or iPad or iPhone, it comes in iOS 4.3.3 and you have a choice to update to IOS 5 or not.
Any iPhone, iPod touch, or iPad that is using iOS 5.
yes only if you have an iphone 4s
JailBreak it and install UltraSn0w via cydia, if it doesnt show up add the repo: repo666.ultrasn0w.com