iOS 17.5 (21F79) for iPhone 11 Pro Max

1 Choose a product
2 Choose a device
3 Choose a version
4 Download
iPhone 11 Pro Max

✗ This firmware is not signed. This means you cannot restore to it in Finder, the Apple Devices app, iTunes, or idevicerestore.

Your download should begin shortly. If it does not, you can download it directly here:

Download (7.1 GiB)

This firmware is not signed. This means you cannot restore to it in Finder, the Apple Devices app, iTunes, or idevicerestore. The instructions below are included for reference only.

Windows

  1. Install the latest version of Apple Devices from the Microsoft Store.
  2. Plug your iPhone 11 Pro Max in to your PC.
  3. Open Apple Devices, and navigate to your iPhone 11 Pro Max.
  4. Hold the Shift key on your keyboard, and press "Restore".
  5. Select the iPhone12,3,iPhone12,5_17.5_21F79_Restore.ipsw file that you downloaded.
  6. Wait for the restore to complete, and the iPhone 11 Pro Max to reboot.

macOS

  1. Plug your iPhone 11 Pro Max in to your Mac.
  2. Navigate to your iPhone 11 Pro Max in Finder.
  3. Hold the Option or Alt key on your keyboard, and press "Restore".
  4. Select the iPhone12,3,iPhone12,5_17.5_21F79_Restore.ipsw file that you downloaded.
  5. Wait for the restore to complete, and the iPhone 11 Pro Max to reboot.

Linux

  1. Install idevicerestore.
  2. Plug your iPhone 11 Pro Max 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 iPhone12,3,iPhone12,5_17.5_21F79_Restore.ipsw and press enter.
  5. Wait for the restore to complete, and the iPhone 11 Pro Max to reboot.

Windows

  1. Open PowerShell, and navigate to the IPSW file that you downloaded, e.g. cd Downloads
  2. Type Get-FileHash iPhone12,3,iPhone12,5_17.5_21F79_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: 440138075e390b08f4c84764e02bf3ac4119e1d2. If it doesn't, you may need to redownload the file.

macOS

  1. Open a terminal, and navigate to the IPSW file that you downloaded, e.g. cd ~/Downloads
  2. Type openssl sha1 iPhone12,3,iPhone12,5_17.5_21F79_Restore.ipsw
  3. The output of the command should match the following checksum: 440138075e390b08f4c84764e02bf3ac4119e1d2. If it doesn't, you may need to redownload the file.

Linux

  1. Open a terminal, and navigate to the IPSW file that you downloaded, e.g. cd ~/Downloads
  2. Type openssl sha1 iPhone12,3,iPhone12,5_17.5_21F79_Restore.ipsw
  3. The output of the command should match the following checksum: 440138075e390b08f4c84764e02bf3ac4119e1d2. If it doesn't, you may need to redownload the file.

Checksums

SHA256sum606f07a191b0936600a3909c1f68a50ef0325446b04fae812a6c765174bf6b82
MD5sum606f07a191b0936600a3909c1f68a50ef0325446b04fae812a6c765174bf6b82
SHA1sum440138075e390b08f4c84764e02bf3ac4119e1d2
Please note, the documentation below is supplied from Apple's update servers. We don't modify the contents of this documentation.

Apple News

  • Offline mode in Apple News+ gives you access to the Today feed and News+ tab, even when you don’t have an internet connection

  • Quartiles is a new and original daily word game that is now available in Apple News+

  • Scoreboard in News+ Puzzles gives you access to new player data for Crossword, Mini Crossword and Quartiles, including stats and streaks

Tracking Notifications

  • Cross-Platform Tracking Detection delivers notifications to users if a compatible Bluetooth tracker they do not own is moving with them, regardless of what operating system the device is paired with

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:

https://support.apple.com/kb/HT201222

Bluesky Mastodon r/jailbreak Twitter