Basically I broke my iPhone 6 and have now gone back to a factory reset iPhone 4. Now how would I go about downloading the best ios for this phone?! As under settings it says ios 9 but I'm presuming that's not supported on the iPhone 4. I can't seem to find any other way to update it other than ios 9 which keeps failing on the phone and via iTunes (cannot connect to server) anyone any clue on what ios I can update to with no problems and how I'd go about doing it?
Cheers I'll +rep