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iPhone 6

iOS 11.4.1 (15G77) for iPhone 6

✗ 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 (2.78 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 6 in to your PC.
  3. Open iTunes, and navigate to your iPhone 6.
  4. Hold the Shift key on your keyboard, and press "Restore".
  5. Select the iPhone_4.7_11.4.1_15G77_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 iPhone_4.7_11.4.1_15G77_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 iPhone_4.7_11.4.1_15G77_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 iPhone_4.7_11.4.1_15G77_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: ca9fafec703277afb8b7381a8c9d5adfe19d9eed. 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_11.4.1_15G77_Restore.ipsw
  3. The output of the command should match the following checksum: ca9fafec703277afb8b7381a8c9d5adfe19d9eed. 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_11.4.1_15G77_Restore.ipsw
  3. The output of the command should match the following checksum: ca9fafec703277afb8b7381a8c9d5adfe19d9eed. If it doesn't, you may need to redownload the file.

Checksums

SHA256sum 969932ec35c7a3122936ec49e220657dfb3b1d2876e2517f4d3a0cb7a627738d
MD5sum 8c6528a7b18c1f7f07008fd981145b37
SHA1sum ca9fafec703277afb8b7381a8c9d5adfe19d9eed
Please note, the documentation below is supplied from Apple's update servers. We don't modify the contents of this documentation.

iOS 11.4.1 includes bug fixes and improves the security of your iPhone or iPad. This update:

  • Fixes an issue that prevented some users from viewing the last known location of their AirPods in Find My iPhone
  • Improves reliability of syncing mail, contacts and notes with Exchange accounts

For information on the security content of Apple software updates, please visit this website:

https://support.apple.com/kb/HT201222

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