Software Update Iphone Itunes. When prompted tap on Install Now. Click on Help and then click on Check for Updates to check if there is any new update is available and update it.
Before performing the software update through iTunes you must download the latest version of iTunes on your PC or Mac. Open Settings on your iPhone tap on General and navigate to Software Update. To turn on Wi-Fi syncing see Sync iTunes content on PC with devices on Wi-Fi.
The easiest way to update an iPhone is to make use of the Settings App on your iPhone.
Enter your iPhones passcode and agree to the specified terms and conditions. Depending on the size of the update and speed of your WiFi network it can take several minutes for the update to be downloaded. If an update is available click Update. To update iTunes for Windows version find Help from the toolbar and click on Check for Updates and then follow the instructions.