iOS 4.3 (8F190) 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.

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

Download (423 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_4.3_8F190_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_4.3_8F190_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_4.3_8F190_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_4.3_8F190_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: d05108c7338f7df7026b2d9a84f632a096bace92. 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_4.3_8F190_Restore.ipsw
  3. The output of the command should match the following checksum: d05108c7338f7df7026b2d9a84f632a096bace92. 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_4.3_8F190_Restore.ipsw
  3. The output of the command should match the following checksum: d05108c7338f7df7026b2d9a84f632a096bace92. If it doesn't, you may need to redownload the file.

Checksums

SHA256sum638569a22c13f09dd5aa8cd03519187b05913a774a8e7636297d09a9b23e1f7d
MD5sum638569a22c13f09dd5aa8cd03519187b05913a774a8e7636297d09a9b23e1f7d
SHA1sumd05108c7338f7df7026b2d9a84f632a096bace92
Please note, the documentation below is supplied from Apple's update servers. We don't modify the contents of this documentation.

iOS 4.3 Software Update

This update contains new features and improvements, including the following:

• Personal Hotspot*

    - Share iPhone 4 cellular data connection with up to 5

          devices (combination of up to 3 Wi-Fi, 3 Bluetooth,

          and 1 USB)

• iTunes Home Sharing

    - Play music, movies and TV shows from a shared iTunes

          library on a Mac or PC (requires iTunes 10.2)

• New AirPlay features**

    - Play videos from the Photos app including the Camera

          Roll album, iTunes previews, enabled third-party apps

          and websites on Apple TV

    - Play slideshows from Photos on Apple TV using

          transitions available on Apple TV

• Faster Safari performance with Apple Nitro JavaScript

      engine

• HD video out using the Apple Digital AV Adapter***

    - View 720p HD videos from Videos app, iPod app,

          Photos, YouTube, Safari, Keynote, and enabled

          third-party apps on an HDMI display

• Ping features

    - Push notifications for comments and follow requests

    - Post and Like songs directly from the Now Playing

          screen

    - Parental controls

• New Settings

    - Messages setting for number of times to repeat an

          alert

    - iPad side switch setting to lock screen rotation or mute

          audio notifications and sound effects

• Single tap conference call dialing with a pause to send

      a passcode

• Bug fixes

Products compatible with this software update:

• iPhone 4 (GSM model)

• iPhone 3GS

• iPad

• iPod touch (4th generation)

• iPod touch (3rd generation)

*Requires iPhone 4 with tethering data plan

**Requires Apple TV (2nd generation) running software

      version 4.2 or later

***iPhone 4, iPad, iPod touch (4th generation)

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

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

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