iOS 11.3 offers a number of new features, large and small, including the new Animoji on iPhone X, ARKit enhancements, battery health management, business chats, and much more.
How to install iOS 11.3 using software update on your iPhone
- Make sure you have a recent backup of iCloud.
- Go to Settings from the Home screen.
- Press General.
- Click Update Program.
- Click to download and install.
- Enter your Pass code, if requested.
- Click OK on Terms and Conditions.
- Click OK again to confirm.
The download will start automatically, and if the download does not start immediately, you'll see a notification: "Preparing for download is on," give it a few minutes and the download will begin shortly.
How to install iOS 11.3 using iTunes on your Mac or Windows
If you have limited space on your device or the software update does not work for any reason, you can update using iTunes.
- Make sure you have a recent iTunes backup and make it encrypted so that all of your passwords and other private data are retained.
- Run iTunes on your Mac or Windows.
- Connect your device using a USB cable.
- Click the device icon in the top left to navigate to the device tab.
- Click Check for Updates.
- Click Download and Update.
- Approved terms and conditions.
- Enter the password on your iPhone, if requested.