Install software updates for iPhone and iPad
Software updates provide security improvements, bug fixes, and new features.
Overview
iPhone and iPad automatically check for and can install software updates wirelessly or through a Mac. Organizations can manage when updates appear and install on supervised devices through device management services. Clear communication with users about update policies helps prevent disruptions and support calls.
Software update methods
Users have several ways to install software updates:
Wireless updates: Users go to Settings > General > Software Update to check for and install updates. This method requires Wi-Fi or cellular connection with sufficient data allowance and adequate device storage.
Automatic updates: Users enable automatic installation in Settings > General > Software Update > Automatic Updates. Updates install overnight while the device is charging, connected to Wi-Fi, and locked.
Updates using Mac: When wireless updates aren’t available, users can update through the Finder. This method requires connecting the device with a Thunderbolt or USB cable.
The difference between updates and upgrades becomes important for compatibility. A software update is a newer version of currently installed software, like iOS 18.6.1 to iOS 18.6.2. An upgrade is a major new version, like iOS 18 to iOS 26.
Managed software updates
On supervised devices enrolled through Automated Device Enrollment, organizations control software update behavior through device management. Administrators can delay when updates appear for up to 90 days, enforce minimum operating system versions, and control automatic update settings.
When device management restricts updates, users see dimmed update options or messages indicating their device is running the latest software allowed by their administrator. Updates unavailable due to organizational policies won’t appear in Settings > General > Software Update.
Feature | Managed devices | Unmanaged devices |
|---|---|---|
Update availability | Time-based deferrals up to 90 days after public release. | User has access to all publicly available updates. |
Update enforcement | A device management service administrator can enforce specific updates by target date. | User controls when to install updates. |
Version control | Restricted to approved versions only. | User can update or upgrade to any available version. |
Automatic updates | Configurable through device management declarations. | User controls automatic update settings. |
If iOS or iPadOS can’t update
What to look for:
“Unable to Check for Update” or “Unable to Download” messages appear.
What’s happening:
Network connectivity issues may prevent update server access.
Steps to take:
Restart the iPhone or iPad.
Check Wi-Fi connection and adequate battery power.
Try updating using a different network connection.
Confirm VPN access is turned off.
What to look for:
Update repeatedly fails or won’t complete.
What’s happening:
The update file could be damaged or the installer encountered an error.
Steps to take:
Delete the update from the device in Settings > General > [iPhone][iPad] Storage.
Download the latest update again through Software Update.
If wireless methods continue to fail, use a Mac to perform the update.
What to look for:
A message says the iPhone or iPad doesn’t have enough storage space.
What’s happening:
Insufficient device storage for the update files.
Steps to take:
Free up storage space in Settings > General > [iPhone][iPad] Storage.
What to look for:
Update options are dimmed or unavailable on managed devices.
What’s happening:
Device management policies restricting update availability.
Steps to take:
Contact the device management administrator to verify update policies.
Confirm the device meets minimum system requirements for the update.