iOS 8.1.1 (12B436) for iPhone 6+

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iPhone 6+

✗ 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 (2.0 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 6+ in to your PC.
  3. Open Apple Devices, and navigate to your iPhone 6+.
  4. Hold the Shift key on your keyboard, and press "Restore".
  5. Select the iPhone7,1_8.1.1_12B436_Restore.ipsw file that you downloaded.
  6. Wait for the restore to complete, and the iPhone 6+ to reboot.

macOS

  1. Plug your iPhone 6+ in to your Mac.
  2. Navigate to your iPhone 6+ in Finder.
  3. Hold the Option or Alt key on your keyboard, and press "Restore".
  4. Select the iPhone7,1_8.1.1_12B436_Restore.ipsw file that you downloaded.
  5. Wait for the restore to complete, and the iPhone 6+ to reboot.

Linux

  1. Install idevicerestore.
  2. Plug your iPhone 6+ 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 iPhone7,1_8.1.1_12B436_Restore.ipsw and press enter.
  5. Wait for the restore to complete, and the iPhone 6+ to reboot.

Windows

  1. Open PowerShell, and navigate to the IPSW file that you downloaded, e.g. cd Downloads
  2. Type Get-FileHash iPhone7,1_8.1.1_12B436_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: e306dba340188c167efd719780bcf42d129cd161. 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 iPhone7,1_8.1.1_12B436_Restore.ipsw
  3. The output of the command should match the following checksum: e306dba340188c167efd719780bcf42d129cd161. 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 iPhone7,1_8.1.1_12B436_Restore.ipsw
  3. The output of the command should match the following checksum: e306dba340188c167efd719780bcf42d129cd161. If it doesn't, you may need to redownload the file.

Checksums

SHA256sum1fef614ade2843b9b10c46d5a216980b5ee2fb2c0984f4a2bf4340fdea58b588
MD5sum1fef614ade2843b9b10c46d5a216980b5ee2fb2c0984f4a2bf4340fdea58b588
SHA1sume306dba340188c167efd719780bcf42d129cd161
Please note, the documentation below is supplied from Apple's update servers. We don't modify the contents of this documentation.

iOS 8.1.1

This release includes bug fixes, increased stability and performance improvements for iPad 2 and iPhone 4s.

For information on the security content of this update, please visit this website:   

http://support.apple.com/kb/HT1222

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