iOS 5.1.1 (9B206) 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 (687 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_5.1.1_9B206_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_5.1.1_9B206_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_5.1.1_9B206_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_5.1.1_9B206_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: 2a35ac00cd00c4bc499a971391b99471bf2fdd05. 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_5.1.1_9B206_Restore.ipsw
  3. The output of the command should match the following checksum: 2a35ac00cd00c4bc499a971391b99471bf2fdd05. 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_5.1.1_9B206_Restore.ipsw
  3. The output of the command should match the following checksum: 2a35ac00cd00c4bc499a971391b99471bf2fdd05. If it doesn't, you may need to redownload the file.

Checksums

SHA256sum03962930616fa22eae1e4f96b751ee7ff70b6b0f29bdaeae2743096a7a9455f0
MD5sum03962930616fa22eae1e4f96b751ee7ff70b6b0f29bdaeae2743096a7a9455f0
SHA1sum2a35ac00cd00c4bc499a971391b99471bf2fdd05
Please note, the documentation below is supplied from Apple's update servers. We don't modify the contents of this documentation.

iOS 5.1.1

This update contains improvements and bug fixes, including:

  • Improves reliability of using HDR option for photos taken using the Lock Screen shortcut

  • Addresses bugs that could prevent the new iPad from switching between 2G and 3G networks

  • Fixes bugs that affected AirPlay video playback in some circumstances

  • Improved reliability for syncing Safari bookmarks and Reading List

  • Fixes an issue where 'Unable to purchase' alert could be displayed after successful purchase

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

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

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