Apple has released iOS 16.3 for iPhone. iOS 16.3 update brings physical security key support, a commemorative Black History Month wallpaper, 2nd generation HomePod support, bug fixes, and security improvements, plus a host of other minor changes. It contains. We recommend that all applicable iPhone users install the update.
First Buckup Before Update Software or flashing your iPhone or iPads
- Before Update Software, please make a backup of important data, or check “keep user data for flashing” to prevent loss of important data.
- Please make sure that the “Find My iPhone” or “Activation lock is not enabled” on the iPhone iPhone or iPad device, or that you know the ID lock account number and password, otherwise, the device may not be activated after flashing.
- After the device is upgraded to the beta version of iOS 16.3 (20D47), it will no longer be able to downgrade to the “Apple has turned off verification” firmware version, even if the SHSH was backed up with 3uTools before, it cannot be downgraded.
- After the device is upgraded to the iOS 16.3 (20D47) version, if you want to downgrade to another “Apple has not turned off verification” version, it is not recommended to check “Keep user data for flashing machine“. 3uTools classifies and backs up the data and performs a new flash, and then classifies and restores the data after success.
How to Download & Update iPhone Software to iOS 16.3
- Back up your device using iCloud or your computer.
- Plug your device into power and connect to the internet with Wi-Fi.
- Go to Settings.
- Tap General.
- Tap Software Update.
- If you see more than one software update option available, choose the one that you want to install.
- Tap Install Now. If you see Download iOS 16.3 and Install instead, tap it to download the update, enter your passcode, then tap Install Now. If you don’t know your passcode, learn what to do.
iPhone iOS 16.3 IPSW Download Links
Firmware for iPhone iOS 16.3 is available directly from Apple:
- iPhone 14 Pro Max
- iPhone 14 Pro
- iPhone 14
- iPhone 14 Plus
- iPhone 13 Pro Max
- iPhone 13 Pro
- iPhone 13 mini
- iPhone 13
- iPhone 12
- iPhone 12 Pro
- iPhone 12 mini
- iPhone 12 Pro Max
- iPhone 11 Pro
- iPhone 11 Pro Max
- iPhone XS Max
- iPhone XS
- iPhone 11
- iPhone XR
- iPhone X
- iPhone 8
- iPhone 8 Plus
- iPhone SE 2nd Generation
- iPhone SE 3rd Generation
iOS 16.4 Beta may be as stable as iOS 16.0, 16.1, 16.2, and iOS 16.3 public releases, but if you don’t like it, we recommend downgrading. To do this, you need an archived backup of iOS 16.2 or iOS 16.3 (still signed), but you can only create a backup before installing iOS 16.4 beta.
iOS 16.3 Release Notes
Please note, the documentation below is supplied from Apple’s update servers. We don’t modify the contents of this documentation.
This update includes the following enhancements and bug fixes:
- New Unity wallpaper honors Black history and culture in celebration of Black History Month
- Security Keys for Apple ID allow users to strengthen the security of their account by requiring a physical security key as part of the two-factor authentication sign-in process on new devices
- Support for HomePod (2nd generation)
- Emergency SOS calls now require holding the side button with the up or down volume button and then releasing it in order to prevent inadvertent emergency calls
- Fixes an issue in Freeform where some drawing strokes created with Apple Pencil or your finger may not appear on shared boards
- Addresses an issue where the wallpaper may appear black on the Lock Screen
- Fixes an issue where horizontal lines may temporarily appear while waking up iPhone 14 Pro
- Fixes an issue where the Home Lock Screen widget does not accurately display the Home app status
- Addresses an issue where Siri may not respond properly to music requests
- Resolves issues where Siri requests in CarPlay may not be understood correctly
Some features may not be available for all regions or on all Apple devices. For information on the security content of Apple software updates, please visit this website: