iOS 15.3.1 (19D52) for iPhone 13 Pro Max

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iPhone 13 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 (6.2 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 13 Pro Max in to your PC.
  3. Open Apple Devices, and navigate to your iPhone 13 Pro Max.
  4. Hold the Shift key on your keyboard, and press "Restore".
  5. Select the iPhone14,3_15.3.1_19D52_Restore.ipsw file that you downloaded.
  6. Wait for the restore to complete, and the iPhone 13 Pro Max to reboot.

macOS

  1. Plug your iPhone 13 Pro Max in to your Mac.
  2. Navigate to your iPhone 13 Pro Max in Finder.
  3. Hold the Option or Alt key on your keyboard, and press "Restore".
  4. Select the iPhone14,3_15.3.1_19D52_Restore.ipsw file that you downloaded.
  5. Wait for the restore to complete, and the iPhone 13 Pro Max to reboot.

Linux

  1. Install idevicerestore.
  2. Plug your iPhone 13 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 iPhone14,3_15.3.1_19D52_Restore.ipsw and press enter.
  5. Wait for the restore to complete, and the iPhone 13 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 iPhone14,3_15.3.1_19D52_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: eff9521dd5f5193babb37886749a950b56153e7d. 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 iPhone14,3_15.3.1_19D52_Restore.ipsw
  3. The output of the command should match the following checksum: eff9521dd5f5193babb37886749a950b56153e7d. 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 iPhone14,3_15.3.1_19D52_Restore.ipsw
  3. The output of the command should match the following checksum: eff9521dd5f5193babb37886749a950b56153e7d. If it doesn't, you may need to redownload the file.

Checksums

SHA256sum7b2ee10e6a2331d8805162c479dc04e7f920b570670a1416ea88788c3bcf2eae
MD5sum7b2ee10e6a2331d8805162c479dc04e7f920b570670a1416ea88788c3bcf2eae
SHA1sumeff9521dd5f5193babb37886749a950b56153e7d
Please note, the documentation below is supplied from Apple's update servers. We don't modify the contents of this documentation.

iOS 15.3.1 provides important security updates for your iPhone and fixes an issue that may cause Braille displays to stop responding.

For information on the security content of Apple software updates, please visit this website:

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

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