IPSW Downloads

iOS 14.3 - 18C66 for iPhone SE (GSM)

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

Release Date14 December 2020
Upload Date09 December 2020
File NameiPhone_4.0_64bit_14.3_18C66_Restore.ipsw
File Size4.27 GB
SHA256sum0ff65eb6af1c0fe475ce5bbd15bdeb6e8547fb063b64ce09dad8ba7b644f426b
MD5sum0bb147d58175b9bbd50b2990df860219
SHA1sum9b4ae780ba8c877150ca1bc75df64b45dd03eaf1
IdentifieriPhone8,4

Installation Instructions

Windows

  1. Install the latest version of iTunes from the Microsoft Store.
  2. Connect your iPhone SE (GSM) to your PC.
  3. Open iTunes and navigate to your iPhone SE (GSM).
  4. Hold the Shift key and click "Restore".
  5. Select the iPhone_4.0_64bit_14.3_18C66_Restore.ipsw file you downloaded.
  6. Wait for the restore to complete and for your iPhone SE (GSM) to reboot.

macOS

  1. Connect your iPhone SE (GSM) to your Mac.
  2. Navigate to your iPhone SE (GSM) in Finder.
  3. Hold the Option or Alt key and click "Restore".
  4. Select the iPhone_4.0_64bit_14.3_18C66_Restore.ipsw file you downloaded.
  5. Wait for the restore to complete and for your iPhone SE (GSM) to reboot.

Linux

  1. Install idevicerestore.
  2. Connect your iPhone SE (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_14.3_18C66_Restore.ipsw and press Enter.
  5. Wait for the restore to complete and for your iPhone SE (GSM) to reboot.