IPSW Downloads

iOS 12.3.1 - 16F203 for iPhone 5S (GSM)

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

Release Date24 May 2019
Upload Date22 May 2019
File NameiPhone_4.0_64bit_12.3.1_16F203_Restore.ipsw
File Size2.92 GB
SHA256sum8d578d4c0c31dfb86271bc10841024629ed46becf6a53aaa6150f22840bb41a6
MD5sum787d63093812d8abbcf0d247bb6d5385
SHA1suma2421715aa1c95cd294e22d062bd0ce492bb4a26
IdentifieriPhone6,1

Installation Instructions

Windows

  1. Install the latest version of iTunes from the Microsoft Store.
  2. Connect your iPhone 5S (GSM) to your PC.
  3. Open iTunes and navigate to your iPhone 5S (GSM).
  4. Hold the Shift key and click "Restore".
  5. Select the iPhone_4.0_64bit_12.3.1_16F203_Restore.ipsw file you downloaded.
  6. Wait for the restore to complete and for your iPhone 5S (GSM) to reboot.

macOS

  1. Connect your iPhone 5S (GSM) to your Mac.
  2. Navigate to your iPhone 5S (GSM) in Finder.
  3. Hold the Option or Alt key and click "Restore".
  4. Select the iPhone_4.0_64bit_12.3.1_16F203_Restore.ipsw file you downloaded.
  5. Wait for the restore to complete and for your iPhone 5S (GSM) to reboot.

Linux

  1. Install idevicerestore.
  2. Connect your iPhone 5S (GSM) 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 iPhone_4.0_64bit_12.3.1_16F203_Restore.ipsw and press Enter.
  5. Wait for the restore to complete and for your iPhone 5S (GSM) to reboot.