IPSW Downloads

iOS 8.3 - 12F70 for iPhone 4S

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

Release Date08 April 2015
Upload Date04 April 2015
File NameiPhone4,1_8.3_12F70_Restore.ipsw
File Size1.44 GB
SHA256sum0c71642bcb2e23ea7be7205b489f7dc0484b439df90919a4467b3d0c546b74aa
MD5sum51217942e98f854784f324a1833baa3b
SHA1sum2b1b3e1670c65d142aaecbe91b30f72c5d459265
IdentifieriPhone4,1

Installation Instructions

Windows

  1. Install the latest version of iTunes from the Microsoft Store.
  2. Connect your iPhone 4S to your PC.
  3. Open iTunes and navigate to your iPhone 4S.
  4. Hold the Shift key and click "Restore".
  5. Select the iPhone4,1_8.3_12F70_Restore.ipsw file you downloaded.
  6. Wait for the restore to complete and for your iPhone 4S to reboot.

macOS

  1. Connect your iPhone 4S to your Mac.
  2. Navigate to your iPhone 4S in Finder.
  3. Hold the Option or Alt key and click "Restore".
  4. Select the iPhone4,1_8.3_12F70_Restore.ipsw file you downloaded.
  5. Wait for the restore to complete and for your iPhone 4S to reboot.

Linux

  1. Install idevicerestore.
  2. Connect your iPhone 4S 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 iPhone4,1_8.3_12F70_Restore.ipsw and press Enter.
  5. Wait for the restore to complete and for your iPhone 4S to reboot.