IPSW Downloads

iPadOS 17.5.1 - 21F90 for iPad Pro 12.9 inch 4th Gen (WiFi+Cellular)

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

Release Date20 May 2024
Upload Date17 May 2024
File NameiPad_Pro_A12X_A12Z_17.5.1_21F90_Restore.ipsw
File Size7.34 GB
SHA256sum7f30f40ea9632065d58e209562b8b077d670176e1ffc06d00fe38edd35c4fc8e
MD5sum585b7edf62fa3e27cf28e51940139f5a
SHA1sumba436c11a3518ce5e60a084057d185898e11ec2d
IdentifieriPad8,12

Installation Instructions

Windows

  1. Install the latest version of iTunes from the Microsoft Store.
  2. Connect your iPad Pro 12.9 inch 4th Gen (WiFi+Cellular) to your PC.
  3. Open iTunes and navigate to your iPad Pro 12.9 inch 4th Gen (WiFi+Cellular).
  4. Hold the Shift key and click "Restore".
  5. Select the iPad_Pro_A12X_A12Z_17.5.1_21F90_Restore.ipsw file you downloaded.
  6. Wait for the restore to complete and for your iPad Pro 12.9 inch 4th Gen (WiFi+Cellular) to reboot.

macOS

  1. Connect your iPad Pro 12.9 inch 4th Gen (WiFi+Cellular) to your Mac.
  2. Navigate to your iPad Pro 12.9 inch 4th Gen (WiFi+Cellular) in Finder.
  3. Hold the Option or Alt key and click "Restore".
  4. Select the iPad_Pro_A12X_A12Z_17.5.1_21F90_Restore.ipsw file you downloaded.
  5. Wait for the restore to complete and for your iPad Pro 12.9 inch 4th Gen (WiFi+Cellular) to reboot.

Linux

  1. Install idevicerestore.
  2. Connect your iPad Pro 12.9 inch 4th Gen (WiFi+Cellular) 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 iPad_Pro_A12X_A12Z_17.5.1_21F90_Restore.ipsw and press Enter.
  5. Wait for the restore to complete and for your iPad Pro 12.9 inch 4th Gen (WiFi+Cellular) to reboot.