Software Update Using Itunes. How To Update Your iPhone Software In iTunes. Depending on your settings this may launch iTunes andor sync your iPod.
In the top box underneath iPhone click Check For Update. You can connect your device using a USB or USB-C cable or a Wi-Fi connection. In most cases updating the iOS will not cause a loss of data but things can occasionally go wrong.
On a Mac running macOS 1015 open the Finder.
You can connect your device using a USB or USB-C cable or a Wi-Fi connection. Patiently wait for the update to be download to your iPhone. On the software update screen tap on Download and Install in case a software update is available. Connect your iPhone which needs to be updated to the PC or Mac.