IPSW Downloads

iOS 14.3 - 18C66 for iPhone 11

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

Release Date14 December 2020
Upload Date09 December 2020
File NameiPhone11,8,iPhone12,1_14.3_18C66_Restore.ipsw
File Size5.35 GB
SHA256sumc691b8a5054b9b40c76c219d6a81e149f8a6375fda1e1269506215dc17b69158
MD5sumc88c3cc590c1b39c26a1703cf56c673a
SHA1sumb4ba7ccad716409e8151cae9743cfb78c59eb753
IdentifieriPhone12,1

Installation Instructions

Windows

  1. Install the latest version of iTunes from the Microsoft Store.
  2. Connect your iPhone 11 to your PC.
  3. Open iTunes and navigate to your iPhone 11.
  4. Hold the Shift key and click "Restore".
  5. Select the iPhone11,8,iPhone12,1_14.3_18C66_Restore.ipsw file you downloaded.
  6. Wait for the restore to complete and for your iPhone 11 to reboot.

macOS

  1. Connect your iPhone 11 to your Mac.
  2. Navigate to your iPhone 11 in Finder.
  3. Hold the Option or Alt key and click "Restore".
  4. Select the iPhone11,8,iPhone12,1_14.3_18C66_Restore.ipsw file you downloaded.
  5. Wait for the restore to complete and for your iPhone 11 to reboot.

Linux

  1. Install idevicerestore.
  2. Connect your iPhone 11 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 iPhone11,8,iPhone12,1_14.3_18C66_Restore.ipsw and press Enter.
  5. Wait for the restore to complete and for your iPhone 11 to reboot.