iOS 17.4.1 (21E236) 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_17.4.1_21E236_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_17.4.1_21E236_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_17.4.1_21E236_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_17.4.1_21E236_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: 22263722c1b929b956b941e4c703496b96831f63. 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_17.4.1_21E236_Restore.ipsw
  3. The output of the command should match the following checksum: 22263722c1b929b956b941e4c703496b96831f63. 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_17.4.1_21E236_Restore.ipsw
  3. The output of the command should match the following checksum: 22263722c1b929b956b941e4c703496b96831f63. If it doesn't, you may need to redownload the file.

Checksums

SHA256sum4d704ca102901e77d6a70f0faf4429211d9d28b91f758e7e7e04eaf9cff3498b
MD5sum4d704ca102901e77d6a70f0faf4429211d9d28b91f758e7e7e04eaf9cff3498b
SHA1sum22263722c1b929b956b941e4c703496b96831f63
Please note, the documentation below is supplied from Apple's update servers. We don't modify the contents of this documentation.

This update provides important bug fixes and security updates and is recommended for all users.

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