After weeks of testing betas, Apple has released iOS 9.3 at its “Let us loop you in” event. iOS 9.3 brings a number of new features and improvements. Notable new features includes Night Shift mode, enhancements to Notes and News apps.
In addition, iOS 9.3 also brings new capabilities to 3D touch, CarPlay and Apple Music. With iOS 9.3, Apple has also introduced CareKit framework and better Health dashboard.
As usual, iOS 9.3 update can be performed either Over the Air (OTA) directly from your device or using a stock IPSW file to completely restore your device via iTunes.
To upgrade to iOS 9.3 via OTA updates, navigate to Settings > General > Software Update on your device and select Download and install. iOS 9.3 will be downloaded and installed on your device with little interaction. Remember that if your device is jailbroken, you will not be able to see new iOS update on your device. You will have to use IPSW to upgrade.
To upgrade to iOS 9.3 using IPSW files, follow steps given below.
How to upgrade to iOS 9.3 using IPSW?
Step 1: Upgrade iTunes to latest version. Download iTunes setup and upgrade it on your PC/Mac.
Step 2: Turn off Find my iPhone from Settings > iCloud.
Step 3: Connect your device and take full backup/Sync your device.
Step 4: Download iOS 9.3 IPSW file for your device using the links below.
Step 5: Press Shift key (on Windows) or Options key (on Mac) on your keyboard and click Restore in iTunes.
Step 6: Release Shift/Option key. Browse to the iOS 9.3 IPSW file you just downloaded.
Step 7: Select the IPSW file and click Update. Wait for the process to finish.
Step 8: One upgrade process is finished, continue with initial setup on your device and select Restore from Backup option in iTunes. Choose the backup and let it restore your data.