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iPhone 6s

iOS 13.5.1 (17F80) for iPhone 6s

✗ This firmware is not signed. This means you cannot restore to it in iTunes.

Your download should begin shortly. If it does not, you can download it directly here:

Download (3.78 GB)

✗ This firmware is not signed. This means you cannot restore to it in iTunes. The instructions below are included for reference only.

Windows

  1. Install the latest version of iTunes from the Microsoft Store.
  2. Plug your iPhone 6s in to your PC.
  3. Open iTunes, and navigate to your iPhone 6s.
  4. Hold the Shift key on your keyboard, and press "Restore".
  5. Select the iPhone_4.7_13.5.1_17F80_Restore.ipsw file that you downloaded.
  6. Wait for the restore to complete, and the iPhone 6s to reboot.

macOS

  1. Plug your iPhone 6s in to your Mac.
  2. Navigate to your iPhone 6s in Finder.
  3. Hold the Option or Alt key on your keyboard, and press "Restore".
  4. Select the iPhone_4.7_13.5.1_17F80_Restore.ipsw file that you downloaded.
  5. Wait for the restore to complete, and the iPhone 6s to reboot.

Linux

  1. Install idevicerestore.
  2. Plug your iPhone 6s 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 iPhone_4.7_13.5.1_17F80_Restore.ipsw and press enter.
  5. Wait for the restore to complete, and the iPhone 6s to reboot.

Windows

  1. Open PowerShell, and navigate to the IPSW file that you downloaded, e.g. cd Downloads
  2. Type Get-FileHash iPhone_4.7_13.5.1_17F80_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: 6b6d13128fcbd0229ae7bd9c4e618bd82c4609ef. 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 iPhone_4.7_13.5.1_17F80_Restore.ipsw
  3. The output of the command should match the following checksum: 6b6d13128fcbd0229ae7bd9c4e618bd82c4609ef. 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 iPhone_4.7_13.5.1_17F80_Restore.ipsw
  3. The output of the command should match the following checksum: 6b6d13128fcbd0229ae7bd9c4e618bd82c4609ef. If it doesn't, you may need to redownload the file.

Checksums

SHA256sum 7464365921c5ce0c3a12c5b31a9b6be8fb060de58ddb2921f2d38bcfdb90e17b
MD5sum 661c6c001868f4fe7bf0b838c25b6967
SHA1sum 6b6d13128fcbd0229ae7bd9c4e618bd82c4609ef
Please note, the documentation below is supplied from Apple's update servers. We don't modify the contents of this documentation.

iOS 13.5.1 provides important security updates and is recommended for all users.

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

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