how do i update my iphone 4.2.1 to ios 5
Iphone 3g only supports 4.2.1.
If your phone is a 3G as indicated in your profile, you can not upgrade to iOS 5. 4.2.1 is the highest possible iOS.
how would i know that it a 3g
how do i know its a 3g
You profile says that it is a 3g. I am guessing you said it was.
You can check here.
yeah its a 3g ...btw thanks .........
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