IPSW Downloads

iOS 15.1 - 19B74 for iPhone 11 Pro Max

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

Release Date25 October 2021
Upload Date15 October 2021
File NameiPhone11,2,iPhone11,4,iPhone11,6,iPhone12,3,iPhone12,5_15.1_19B74_Restore.ipsw
File Size7.00 GB
SHA256sum87e70faeaf16d31da64bc1d33901216c43ab7be32637b93544404d755375d0e9
MD5sum89636448c0bad64044c8a589b0f6ad90
SHA1sum64a2c55fddc7e2cf6d5dac9c6c46c3c77f318508
IdentifieriPhone12,5

Installation Instructions

Windows

  1. Install the latest version of iTunes from the Microsoft Store.
  2. Connect your iPhone 11 Pro Max to your PC.
  3. Open iTunes and navigate to your iPhone 11 Pro Max.
  4. Hold the Shift key and click "Restore".
  5. Select the iPhone11,2,iPhone11,4,iPhone11,6,iPhone12,3,iPhone12,5_15.1_19B74_Restore.ipsw file you downloaded.
  6. Wait for the restore to complete and for your iPhone 11 Pro Max to reboot.

macOS

  1. Connect your iPhone 11 Pro Max to your Mac.
  2. Navigate to your iPhone 11 Pro Max in Finder.
  3. Hold the Option or Alt key and click "Restore".
  4. Select the iPhone11,2,iPhone11,4,iPhone11,6,iPhone12,3,iPhone12,5_15.1_19B74_Restore.ipsw file you downloaded.
  5. Wait for the restore to complete and for your iPhone 11 Pro Max to reboot.

Linux

  1. Install idevicerestore.
  2. Connect your iPhone 11 Pro Max 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 iPhone11,2,iPhone11,4,iPhone11,6,iPhone12,3,iPhone12,5_15.1_19B74_Restore.ipsw and press Enter.
  5. Wait for the restore to complete and for your iPhone 11 Pro Max to reboot.