Firmware file?
iPhone could not be updated because the firmware file is not compatible when I update from my PC. What does that mean? And how do I go about updating the phone? iPhone 6s, iOS v11.3 (15C114) firmware 4.30.02 updating to iOS v12.2 supposedly. It takes 90minutes + to download the 3GB file and I don't want to go through this again. Any help would be appreciated.
iPhone 6s, iOS 11