IPSW Downloads

iOS 4.0.2 - 8A400 for iPhone 3G

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

Release DateInvalid Date
Upload Date09 August 2010
File NameiPhone1,2_4.0.2_8A400_Restore.ipsw
File Size0.30 GB
SHA256sum0b674e23dbd24d796eda26c9c57567f45431f3f85ca354d3d338add8a1bc4bd4
MD5sum6f3aefe1f8f516ae6e91fe993749347a
SHA1sumee2bc74719170a7a2440b593b6f300727c930c69
IdentifieriPhone1,2

Installation Instructions

Windows

  1. Install the latest version of iTunes from the Microsoft Store.
  2. Connect your iPhone 3G to your PC.
  3. Open iTunes and navigate to your iPhone 3G.
  4. Hold the Shift key and click "Restore".
  5. Select the iPhone1,2_4.0.2_8A400_Restore.ipsw file you downloaded.
  6. Wait for the restore to complete and for your iPhone 3G to reboot.

macOS

  1. Connect your iPhone 3G to your Mac.
  2. Navigate to your iPhone 3G in Finder.
  3. Hold the Option or Alt key and click "Restore".
  4. Select the iPhone1,2_4.0.2_8A400_Restore.ipsw file you downloaded.
  5. Wait for the restore to complete and for your iPhone 3G to reboot.

Linux

  1. Install idevicerestore.
  2. Connect your iPhone 3G to your PC.
  3. Open a terminal and navigate to the IPSW file you downloaded, e.g., cd ~/Downloads.
  4. To perform a full erase restore, type idevicerestore -e iPhone1,2_4.0.2_8A400_Restore.ipsw and press Enter.
  5. Wait for the restore to complete and for your iPhone 3G to reboot.