When a new update has come to your device, you will see a notification on Settings app. Before proceeding with software update, make sure that your device has enough battery power or plugged into power and make sure that you are connected thru Wi-Fi. You can learn current version of your iOS by tapping " Settings -> General -> Abou t". Version line shows the current iOS version of your device. For example, current version of this device is 10.0.2 1- Tap on “ Settings -> General -> Software Update ”. 2- If you tap on " Learn More" , you can learn more about current software update. 3- Tap " Install Now" . 4- Enter your 4-digit passcode. 5- You will see a screen showing “ Update Completed “. Then tap on “ Continue “. 6- You will be asked to enter your Apple ID and password. Do so and tap on " Next" . 7- On this version of iOS, Apple provides two-factor authenticati...