Go back to firmware list
iPhone 18 Pro Max (US)

Download iOS 27.0.1 (24A446) for iPhone 18 Pro Max (US)

Released
September 28, 2026
Version
iOS 27.0.1
Build
24A446
Identifier
iPhone19,3
Filename
iPhone19,3_27.0.1_24A446_Restore.ipsw
File size
12.88 GB
Download12.88 GB

iOS 27.0.1 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 provides bug fixes for your iPhone, including fixes for the following issues:

  • iPhone 18 Pro and iPhone 18 Pro Max may unexpectedly restart when Face ID fails to authenticate
  • A color artifact may appear on photos captured at 2x under certain lighting conditions at f/1.48 on a small number of iPhone 18 Pro and iPhone 18 Pro Max devices
  • Opening Notification Center and Control Center simultaneously may cause the touchscreen to become unresponsive

For information on the security content of Apple software updates, please visit: https://support.apple.com/100100

Software updates, like this one, add new features and improvements that may affect performance and/or battery life. To learn more, please visit: https://support.apple.com/125039

Related IPSW

View all IPSW beta for this iPhone
Version Released File Size
27.0.1
24A446
 September 28, 2026 12.88 GB
27.0
24A437
 September 14, 2026 12.88 GB

Installation Instructions

Always back up your device before installing beta software. You can back up your iPhone or iPad using iCloud or your computer.

macOS

  1. Plug your iPhone 18 Pro Max (US) in to your Mac.
  2. Navigate to your iPhone 18 Pro Max (US) in Finder.
  3. Hold the Option or Alt key on your keyboard, and click the "Check for Update" button.
  4. Select the iPhone19,3_27.0.1_24A446_Restore.ipsw file that you downloaded.
  5. Wait for the restore to complete, and the iPhone 18 Pro Max (US) to reboot.

Windows

  1. Install the latest version of Apple Devices from the Microsoft Store.
  2. Plug your iPhone 18 Pro Max (US) in to your PC.
  3. Open Apple Devices, and navigate to your iPhone 18 Pro Max (US).
  4. Hold the Shift key on your keyboard, and click the "Check for Update" button.
  5. Select the iPhone19,3_27.0.1_24A446_Restore.ipsw file that you downloaded.
  6. Wait for the update process to complete, and the iPhone 18 Pro Max (US) to reboot.

Linux

  1. Install idevicerestore.
  2. Plug your iPhone 18 Pro Max (US) in to your PC.
  3. Open a terminal, and navigate to the IPSW file that you downloaded, e.g. cd ~/Downloads
  4. To perform a full erase restore, type idevicerestore -e iPhone19,3_27.0.1_24A446_Restore.ipsw and press enter.
  5. Wait for the restore to complete, and the iPhone 18 Pro Max (US) to reboot.