iOS 9.3.1 (13E238) for iPhone 4[S]

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iPhone 4[S]

✗ 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 (1.5 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 4[S] in to your PC.
  3. Open Apple Devices, and navigate to your iPhone 4[S].
  4. Hold the Shift key on your keyboard, and press "Restore".
  5. Select the iPhone4,1_9.3.1_13E238_Restore.ipsw file that you downloaded.
  6. Wait for the restore to complete, and the iPhone 4[S] to reboot.

macOS

  1. Plug your iPhone 4[S] in to your Mac.
  2. Navigate to your iPhone 4[S] in Finder.
  3. Hold the Option or Alt key on your keyboard, and press "Restore".
  4. Select the iPhone4,1_9.3.1_13E238_Restore.ipsw file that you downloaded.
  5. Wait for the restore to complete, and the iPhone 4[S] to reboot.

Linux

  1. Install idevicerestore.
  2. Plug your iPhone 4[S] 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 iPhone4,1_9.3.1_13E238_Restore.ipsw and press enter.
  5. Wait for the restore to complete, and the iPhone 4[S] to reboot.

Windows

  1. Open PowerShell, and navigate to the IPSW file that you downloaded, e.g. cd Downloads
  2. Type Get-FileHash iPhone4,1_9.3.1_13E238_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: 1699e0986e3746644fa16a8f370b0c4b42d8cf9a. 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 iPhone4,1_9.3.1_13E238_Restore.ipsw
  3. The output of the command should match the following checksum: 1699e0986e3746644fa16a8f370b0c4b42d8cf9a. 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 iPhone4,1_9.3.1_13E238_Restore.ipsw
  3. The output of the command should match the following checksum: 1699e0986e3746644fa16a8f370b0c4b42d8cf9a. If it doesn't, you may need to redownload the file.

Checksums

SHA256sume3c68c5532e924374ed04bf16f71efa5e37bcff23d7bd8e9e4b01ccfb6ea0e3a
MD5sume3c68c5532e924374ed04bf16f71efa5e37bcff23d7bd8e9e4b01ccfb6ea0e3a
SHA1sum1699e0986e3746644fa16a8f370b0c4b42d8cf9a
Please note, the documentation below is supplied from Apple's update servers. We don't modify the contents of this documentation.

iOS 9.3.1

• Fixes an issue that caused apps to be unresponsive after tapping on links in Safari and other apps


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

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

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