Software Update Iphone Via Computer. To turn on Wi-Fi syncing see Sync iTunes content on PC with devices on Wi-Fi. Using iTunes you can update software on your iPhone iPad or iPod.
For this reason you should regularly sync your iPhone with iTunes and check for available updates. Enter your Passcode if prompted. Next click on the Summary tab in the side-menu and click on Check For Update button in the right pane.
Tap on Software Update.
Using iTunes you can update software on your iPhone iPad or iPod. To turn on Wi-Fi syncing see Sync iTunes content on PC with devices on Wi-Fi. As a last resort you can manually download the iOS 14 IPSW firmware file for your iOS device and use it to update your device. Update your device using your computer If you cant update wirelessly on your device you can update manually using a computer that you trust.