iOS 17.1.1 (21B91) for iPhone 11

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iPhone 11

✗ 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 (6.8 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 in to your PC.
  3. Open Apple Devices, and navigate to your iPhone 11.
  4. Hold the Shift key on your keyboard, and press "Restore".
  5. Select the iPhone12,1_17.1.1_21B91_Restore.ipsw file that you downloaded.
  6. Wait for the restore to complete, and the iPhone 11 to reboot.

macOS

  1. Plug your iPhone 11 in to your Mac.
  2. Navigate to your iPhone 11 in Finder.
  3. Hold the Option or Alt key on your keyboard, and press "Restore".
  4. Select the iPhone12,1_17.1.1_21B91_Restore.ipsw file that you downloaded.
  5. Wait for the restore to complete, and the iPhone 11 to reboot.

Linux

  1. Install idevicerestore.
  2. Plug your iPhone 11 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 iPhone12,1_17.1.1_21B91_Restore.ipsw and press enter.
  5. Wait for the restore to complete, and the iPhone 11 to reboot.

Windows

  1. Open PowerShell, and navigate to the IPSW file that you downloaded, e.g. cd Downloads
  2. Type Get-FileHash iPhone12,1_17.1.1_21B91_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: cb5c7b12cc5be4e913909ad2612e3fcc577ca6be. 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 iPhone12,1_17.1.1_21B91_Restore.ipsw
  3. The output of the command should match the following checksum: cb5c7b12cc5be4e913909ad2612e3fcc577ca6be. 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 iPhone12,1_17.1.1_21B91_Restore.ipsw
  3. The output of the command should match the following checksum: cb5c7b12cc5be4e913909ad2612e3fcc577ca6be. If it doesn't, you may need to redownload the file.

Checksums

SHA256sum2fdbdda2f1ebd49878f7735e6bdc48ec694753bb6aff6b271dd666705698aa29
MD5sum2fdbdda2f1ebd49878f7735e6bdc48ec694753bb6aff6b271dd666705698aa29
SHA1sumcb5c7b12cc5be4e913909ad2612e3fcc577ca6be
Please note, the documentation below is supplied from Apple's update servers. We don't modify the contents of this documentation.

This update provides bug fixes for your iPhone including:

  • In rare circumstances, Apple Pay and other NFC features may become unavailable on iPhone 15 models after wireless charging in certain cars

  • Weather Lock Screen widget may not correctly display snow

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