No
Yes. The iPhone 3G can run all iOS versions up to 4.2.1.
I have a 3G iphone with ios 4 and it didn't work on it
iOS Devices do not get viruses
Upgrade to iOS 4 in itunes.
No.
you cant. yet.
Yes. It is supported
i dont think so, the latest update available for iphone 3g is 4.2.2 .
Sn0wbreeze. Google. :D
There is no iPhone 3. You may be referring to the iPhone 3G or 3GS, which are the 2nd and 3rd generation iPhones respectively. Out of these two, only the 3GS can run iOS 6, while the 3G is stuck on iOS 4.2.1
Sync it with a computer and restore it to its factory settings.
go to itunes...plug in your deviceopen up itunesand check for updates