How can update to iOS 8?
How can i update an iphone 4 from ios 7.1.2 to ios 8?
iPhone 4S, iOS 7.1.2
How can i update an iphone 4 from ios 7.1.2 to ios 8?
iPhone 4S, iOS 7.1.2
No, sorry.
Iphone 4 can't be updated beyond 7.1.2.
Iphone 4s can't be updated beyond 9.3.5.
Iphone 5 or 5c can't be updated beyond 10.3.3.
Newer models can be updated to current iOS version (now 12.1).
Regards
Giulio
You can't. iOS 7.1.2 is the latest supported version for the iPhone 4.
How can update to iOS 8?