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iPhone 6s

iOS 15.5 (19F77) for iPhone 6s

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

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Download (5.28 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_15.5_19F77_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_15.5_19F77_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_15.5_19F77_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_15.5_19F77_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: 6206b9830edeb9ad09053b767b8e15eecb51fde9. 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_15.5_19F77_Restore.ipsw
  3. The output of the command should match the following checksum: 6206b9830edeb9ad09053b767b8e15eecb51fde9. 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_15.5_19F77_Restore.ipsw
  3. The output of the command should match the following checksum: 6206b9830edeb9ad09053b767b8e15eecb51fde9. If it doesn't, you may need to redownload the file.

Checksums

SHA256sum 9bfaeccedb3833c7e3bd7eaff65e9236de33ed246c17f2dc2313a43be1da0fb8
MD5sum 7dee8aaa2b6eaa7abd948415769be529
SHA1sum 6206b9830edeb9ad09053b767b8e15eecb51fde9
Please note, the documentation below is supplied from Apple's update servers. We don't modify the contents of this documentation.

iOS 15.5 includes the following improvements and bug fixes:

  • Wallet now enables Apple Cash customers to send and request money from their Apple Cash card
  • Apple Podcasts includes a new setting to limit episodes stored on your iPhone and automatically delete older ones
  • Fixes an issue where home automations, triggered by people arriving or leaving, may fail

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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