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iPhone 4 (GSM)

iOS 4.3.3 (8J2) for iPhone 4 (GSM)

✗ This firmware is not signed. This means you cannot restore to it in iTunes.

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Download (699 MB)

✗ This firmware is not signed. This means you cannot restore to it in iTunes. The instructions below are included for reference only.

Windows

  1. Install the latest version of iTunes from the Microsoft Store.
  2. Plug your iPhone 4 (GSM) in to your PC.
  3. Open iTunes, and navigate to your iPhone 4 (GSM).
  4. Hold the Shift key on your keyboard, and press "Restore".
  5. Select the iPhone3,1_4.3.3_8J2_Restore.ipsw file that you downloaded.
  6. Wait for the restore to complete, and the iPhone 4 (GSM) to reboot.

macOS

  1. Plug your iPhone 4 (GSM) in to your Mac.
  2. Navigate to your iPhone 4 (GSM) in Finder.
  3. Hold the Option or Alt key on your keyboard, and press "Restore".
  4. Select the iPhone3,1_4.3.3_8J2_Restore.ipsw file that you downloaded.
  5. Wait for the restore to complete, and the iPhone 4 (GSM) to reboot.

Linux

  1. Install idevicerestore.
  2. Plug your iPhone 4 (GSM) 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 iPhone3,1_4.3.3_8J2_Restore.ipsw and press enter.
  5. Wait for the restore to complete, and the iPhone 4 (GSM) to reboot.

Windows

  1. Open PowerShell, and navigate to the IPSW file that you downloaded, e.g. cd Downloads
  2. Type Get-FileHash iPhone3,1_4.3.3_8J2_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: 7dcfd428d08e089f41ceb984ad0ce57d374fde04. 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 iPhone3,1_4.3.3_8J2_Restore.ipsw
  3. The output of the command should match the following checksum: 7dcfd428d08e089f41ceb984ad0ce57d374fde04. 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 iPhone3,1_4.3.3_8J2_Restore.ipsw
  3. The output of the command should match the following checksum: 7dcfd428d08e089f41ceb984ad0ce57d374fde04. If it doesn't, you may need to redownload the file.

Checksums

MD5sum a0cb7313c5535991d62890c7eef60f9a
SHA1sum 7dcfd428d08e089f41ceb984ad0ce57d374fde04
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