iOS 17.1.2 (21B101) for iPhone 15

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iPhone 15

✗ 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 (7.5 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 15 in to your PC.
  3. Open Apple Devices, and navigate to your iPhone 15.
  4. Hold the Shift key on your keyboard, and press "Restore".
  5. Select the iPhone15,4_17.1.2_21B101_Restore.ipsw file that you downloaded.
  6. Wait for the restore to complete, and the iPhone 15 to reboot.

macOS

  1. Plug your iPhone 15 in to your Mac.
  2. Navigate to your iPhone 15 in Finder.
  3. Hold the Option or Alt key on your keyboard, and press "Restore".
  4. Select the iPhone15,4_17.1.2_21B101_Restore.ipsw file that you downloaded.
  5. Wait for the restore to complete, and the iPhone 15 to reboot.

Linux

  1. Install idevicerestore.
  2. Plug your iPhone 15 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 iPhone15,4_17.1.2_21B101_Restore.ipsw and press enter.
  5. Wait for the restore to complete, and the iPhone 15 to reboot.

Windows

  1. Open PowerShell, and navigate to the IPSW file that you downloaded, e.g. cd Downloads
  2. Type Get-FileHash iPhone15,4_17.1.2_21B101_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: b0905ef064c4740a3c42006bdf160075f26e9b6c. 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 iPhone15,4_17.1.2_21B101_Restore.ipsw
  3. The output of the command should match the following checksum: b0905ef064c4740a3c42006bdf160075f26e9b6c. 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 iPhone15,4_17.1.2_21B101_Restore.ipsw
  3. The output of the command should match the following checksum: b0905ef064c4740a3c42006bdf160075f26e9b6c. If it doesn't, you may need to redownload the file.

Checksums

SHA256sum574981e5d332e50afe80c9cec968d5ff94172d839f940407ee78e24d29c0888c
MD5sum574981e5d332e50afe80c9cec968d5ff94172d839f940407ee78e24d29c0888c
SHA1sumb0905ef064c4740a3c42006bdf160075f26e9b6c
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 security fixes 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

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