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iPhone 6s

iOS 15.8.4 (19H390) for iPhone 6s

✓ This firmware is signed. This means that you can restore to it in iTunes.

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

Download (5.28 GB)

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_15.8.4_19H390_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_15.8.4_19H390_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_15.8.4_19H390_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_15.8.4_19H390_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: a27fb4d1324841ede2fb445c2cac89d40913c216. 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_15.8.4_19H390_Restore.ipsw
  3. The output of the command should match the following checksum: a27fb4d1324841ede2fb445c2cac89d40913c216. 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_15.8.4_19H390_Restore.ipsw
  3. The output of the command should match the following checksum: a27fb4d1324841ede2fb445c2cac89d40913c216. If it doesn't, you may need to redownload the file.

Checksums

SHA256sum e74977fdf5fd7c652ff7a265a0a2760d4bbac533cc722112a674671c1b9569df
MD5sum ee9e6bf03a44ba9ef67595da051131de
SHA1sum a27fb4d1324841ede2fb445c2cac89d40913c216
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 security fixes 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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