iPad Pro (10.5-inch, Cellular)
Unsigned iPadOS

iPadOS 11.2.1 (15C153)

iPad Pro (10.5-inch, Cellular)

iPad_Pro_HFR_11.2.1_15C153_Restore.ipsw
Device
iPad Pro (10.5-inch, Cellular)
Identifier
iPad7,4
OS
iPadOS
Version
11.2.1
Build
15C153
Release Date
2017-12-13
Upload Date
2017-12-10
Size
2.61 GB
Status
Unsigned
SHA1
07eb0f23acd39e65f4a51bcc7324843c9d2f266d
SHA256
53f6a0b4c9ad4d002b533dd39ad416b31a2d5beb3112c66eff9bb18c46a5b894
MD5
b3de98b6515fffa060315f1b4cbf7129

iPadOS 11.2.1 Release Notes

iOS 11.2.1 fixes bugs including an issue that could disable remote access to shared users of the Home app.

For information on the security content of Apple software updates, please visit this website:

https://support.apple.com/kb/HT201222

How to Restore iPadOS 11.2.1 IPSW

🖥

iTunes (Windows / macOS Mojave and older) & Finder (macOS Catalina+)

  1. Download the iPad_Pro_HFR_11.2.1_15C153_Restore.ipsw file to your computer.
  2. Connect your iPad Pro (10.5-inch, Cellular) to your computer with a USB cable.
  3. Open Finder (macOS Catalina+) or iTunes (Windows / older macOS) and select your device.
  4. To Update (keeps data): hold Option (Mac) or Shift (Windows) and click Check for Update.
  5. To Restore (erases data): hold Option (Mac) or Shift (Windows) and click Restore iPhone/iPad.
  6. Navigate to and select the downloaded .ipsw file, then confirm.
  7. Wait for the process to complete — do not disconnect the device.
⚠️ Note: This firmware is no longer signed by Apple. iTunes/Finder may reject the restore. Use a tool like futurerestore if you have saved blobs.
⌨️

idevicerestore (Command Line)

An open-source command-line tool that restores IPSW files without needing iTunes. Useful for advanced users, automation, and custom restore workflows.

  1. Install via Homebrew: brew install idevicerestore
  2. Connect your device and put it into DFU mode.
  3. Run the restore command:
idevicerestore -t iPad_Pro_HFR_11.2.1_15C153_Restore.ipsw
Common flags:
-eErase restore (factory reset) -uUpdate restore (keep data) -dEnable debug output -nDry-run — don't actually restore
🔓

futurerestore (Saved Blobs / Downgrade)

futurerestore allows restoring to unsigned firmware like this one when you have saved APTickets (blobs) from a tool like TSSSaver or shsh.host.

  1. Download futurerestore from github.com/futurerestore/futurerestore.
  2. Ensure you have a saved .shsh2 blob for iPadOS 11.2.1 (15C153) on your iPad Pro (10.5-inch, Cellular).
  3. Put your device into DFU mode and run:
futurerestore -t your_blob.shsh2 --latest-sep --latest-baseband iPad_Pro_HFR_11.2.1_15C153_Restore.ipsw
⛔ Warning: Using --latest-sep requires the latest SEP to be compatible with iPadOS 11.2.1. Always verify compatibility before restoring to avoid a bricked device.
📲

Entering DFU Mode

DFU (Device Firmware Update) mode is required for most manual restores. The button combination varies by device:

iPhone 8 / X and later / iPad with Face ID
Press & release Volume Up → press & release Volume Down → hold Side button until screen goes black → hold Side + Volume Down for 5 s → release Side but keep Volume Down for 10 s.
iPhone 7 / 7 Plus
Hold Side + Volume Down for 8 s → release Side but keep Volume Down for 10 s.
iPhone 6s and earlier / iPad with Home button
Hold Home + Sleep/Wake for 8 s → release Sleep/Wake but keep Home for 10 s.

💡 Tip: In DFU mode the screen stays completely black. If you see the Apple logo or a "Connect to iTunes" screen, you entered Recovery mode instead — try again.

⇓ Download IPSW Firmware (2.61 GB)
iPad Pro (10.5-inch, Cellular)
Other Signed iPadOS Versions
1 items iPadOS 11.2.1 (15C153)