iOS 4.3.5 (8L1) 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 (420 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_4.3.5_8L1_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_4.3.5_8L1_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_4.3.5_8L1_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_4.3.5_8L1_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: 80119c009590066dc093ccaeafc9056c05fb73ff. 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_4.3.5_8L1_Restore.ipsw
  3. The output of the command should match the following checksum: 80119c009590066dc093ccaeafc9056c05fb73ff. 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_4.3.5_8L1_Restore.ipsw
  3. The output of the command should match the following checksum: 80119c009590066dc093ccaeafc9056c05fb73ff. If it doesn't, you may need to redownload the file.

Checksums

SHA256sumed3a62f4c581a8f500303d4d8e0976dd84bfb5d1f39c83d884b6564a7ecb4ab2
MD5sumed3a62f4c581a8f500303d4d8e0976dd84bfb5d1f39c83d884b6564a7ecb4ab2
SHA1sum80119c009590066dc093ccaeafc9056c05fb73ff
Please note, the documentation below is supplied from Apple's update servers. We don't modify the contents of this documentation.

iOS 4.3.5 Software Update

Fixes a security vulnerability with certificate validation.

Products compatible with this software update:

• iPhone 4 (GSM model)

• iPhone 3GS

• iPad 2

• iPad

• iPod touch (4th generation)

• iPod touch (3rd generation)

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

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

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