iOS 17.1 (21B74) for iPhone 12 Pro Max

1 Choose a product
2 Choose a device
3 Choose a version
4 Download
iPhone 12 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 (7.3 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 12 Pro Max in to your PC.
  3. Open Apple Devices, and navigate to your iPhone 12 Pro Max.
  4. Hold the Shift key on your keyboard, and press "Restore".
  5. Select the iPhone13,4_17.1_21B74_Restore.ipsw file that you downloaded.
  6. Wait for the restore to complete, and the iPhone 12 Pro Max to reboot.

macOS

  1. Plug your iPhone 12 Pro Max in to your Mac.
  2. Navigate to your iPhone 12 Pro Max in Finder.
  3. Hold the Option or Alt key on your keyboard, and press "Restore".
  4. Select the iPhone13,4_17.1_21B74_Restore.ipsw file that you downloaded.
  5. Wait for the restore to complete, and the iPhone 12 Pro Max to reboot.

Linux

  1. Install idevicerestore.
  2. Plug your iPhone 12 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 iPhone13,4_17.1_21B74_Restore.ipsw and press enter.
  5. Wait for the restore to complete, and the iPhone 12 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 iPhone13,4_17.1_21B74_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: 3d8733ee6fc36e07f83443ee98570fe6a2fc16af. 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 iPhone13,4_17.1_21B74_Restore.ipsw
  3. The output of the command should match the following checksum: 3d8733ee6fc36e07f83443ee98570fe6a2fc16af. 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 iPhone13,4_17.1_21B74_Restore.ipsw
  3. The output of the command should match the following checksum: 3d8733ee6fc36e07f83443ee98570fe6a2fc16af. If it doesn't, you may need to redownload the file.

Checksums

SHA256sumcb6ef047aa08486af3c5bc3234cb96e2fe5294d2dcd93c5920d7adc49814d671
MD5sumcb6ef047aa08486af3c5bc3234cb96e2fe5294d2dcd93c5920d7adc49814d671
SHA1sum3d8733ee6fc36e07f83443ee98570fe6a2fc16af
Please note, the documentation below is supplied from Apple's update servers. We don't modify the contents of this documentation.

AirDrop

  • Content continues to transfer over the internet when you step out of AirDrop range

StandBy

  • New options to control when the display turns off (iPhone 14 Pro, iPhone 14 Pro Max, iPhone 15 Pro, and iPhone 15 Pro Max)

Music

  • Favorites expanded to include songs, albums, and playlists, and you can filter to display your favorites in the library

  • New cover art collection offers designs that change colors to reflect the music in your playlist

  • Song suggestions appear at the bottom of every playlist, making it easy to add music that matches the vibe of your playlist

This update also includes the following improvements and bug fixes:

  • Option to choose a specific album to use with Photo Shuffle on the Lock Screen

  • Home key support for Matter locks

  • Improved reliability of Screen Time settings syncing across devices

  • Fixes an issue that may cause the Significant Location privacy setting to reset when transferring an Apple Watch or pairing it for the first time

  • Resolves an issue where the names of incoming callers may not appear when you are on another call

  • Addresses an issue where custom and purchased ringtones may not appear as options for your text tone

  • Fixes an issue that may cause the keyboard to be less responsive

  • Crash detection optimizations (all iPhone 14 and iPhone 15 models)

  • Fixes an issue that may cause display image persistence

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