iPhoneOS 3.1.3 (7E18) for iPhone 3G[S]

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iPhone 3G[S]

✗ This firmware is not signed. This means you cannot restore to it in Finder, the Apple Devices app, iTunes, or idevicerestore.

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Download (291 MiB)

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 3G[S] in to your PC.
  3. Open Apple Devices, and navigate to your iPhone 3G[S].
  4. Hold the Shift key on your keyboard, and press "Restore".
  5. Select the iPhone2,1_3.1.3_7E18_Restore.ipsw file that you downloaded.
  6. Wait for the restore to complete, and the iPhone 3G[S] to reboot.

macOS

  1. Plug your iPhone 3G[S] in to your Mac.
  2. Navigate to your iPhone 3G[S] in Finder.
  3. Hold the Option or Alt key on your keyboard, and press "Restore".
  4. Select the iPhone2,1_3.1.3_7E18_Restore.ipsw file that you downloaded.
  5. Wait for the restore to complete, and the iPhone 3G[S] to reboot.

Linux

  1. Install idevicerestore.
  2. Plug your iPhone 3G[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 iPhone2,1_3.1.3_7E18_Restore.ipsw and press enter.
  5. Wait for the restore to complete, and the iPhone 3G[S] to reboot.

Windows

  1. Open PowerShell, and navigate to the IPSW file that you downloaded, e.g. cd Downloads
  2. Type Get-FileHash iPhone2,1_3.1.3_7E18_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: 8cb3775e62c6f72059a962bf891b4e145b965052. 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 iPhone2,1_3.1.3_7E18_Restore.ipsw
  3. The output of the command should match the following checksum: 8cb3775e62c6f72059a962bf891b4e145b965052. 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 iPhone2,1_3.1.3_7E18_Restore.ipsw
  3. The output of the command should match the following checksum: 8cb3775e62c6f72059a962bf891b4e145b965052. If it doesn't, you may need to redownload the file.

Checksums

SHA256sum8fb97807f4a1b8ec6febf1b9e6176876bf51930b1beb6d1a0a93240189bc1bc8
MD5sum8fb97807f4a1b8ec6febf1b9e6176876bf51930b1beb6d1a0a93240189bc1bc8
SHA1sum8cb3775e62c6f72059a962bf891b4e145b965052
Please note, the documentation below is supplied from Apple's update servers. We don't modify the contents of this documentation.

iPhone OS 3.1.3 Software Update

This update for iPhone and iPod touch contains bug fixes and improvements, including the following:

• Improves accuracy of reported battery level on

      iPhone 3GS

• Resolves issue where third-party apps would not

      launch in some instances

• Fixes bug that may cause an app to crash when

      using the Japanese Kana keyboard

Products compatible with this software update:

• iPhone (all models)

• iPod touch (all models)

For feature descriptions and complete instructions, see the user guides for iPhone and iPod touch at:

http://support.apple.com/manuals/iphone

http://support.apple.com/manuals/ipodtouch

For more information about iPhone and iPod touch, go to:

http://www.apple.com/iphone

http://www.apple.com/ipodtouch

To troubleshoot your iPhone or iPod touch, or to view additional support information go to:

http://www.apple.com/support/iphone

http://www.apple.com/support/ipodtouch

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

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

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