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iPhone 6s+

iOS 15.8.1 (19H380) 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 (5.43 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_5.5_15.8.1_19H380_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_5.5_15.8.1_19H380_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_5.5_15.8.1_19H380_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_5.5_15.8.1_19H380_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: e81e65d0af327628f82a6abe09278b2aa9c8fc52. 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_5.5_15.8.1_19H380_Restore.ipsw
  3. The output of the command should match the following checksum: e81e65d0af327628f82a6abe09278b2aa9c8fc52. 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_5.5_15.8.1_19H380_Restore.ipsw
  3. The output of the command should match the following checksum: e81e65d0af327628f82a6abe09278b2aa9c8fc52. If it doesn't, you may need to redownload the file.

Checksums

SHA256sum 3a2a428ae9bcc9a3e64fe82edc662a01044e23e8aefa630cca462e7f3a924833
MD5sum 5be2f15ed0f7beedd1be51d650b2f2ea
SHA1sum e81e65d0af327628f82a6abe09278b2aa9c8fc52
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/HT201222

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