iPhone 7 is not updating
using a friend's old iPhone 7, and i can't get it to update.. it says i'm not connected to Internet, so i tried doing it through my PC, but it still says error 4000.. phone is stuck at iOS 11.2.1, maybe that's the issue? but can someone tell me why this is happening and how to update to iOS 14.4.2?
iPhone 7, iOS 11