iPad Air (WiFi)

iPad4,1

IPSW Unsigned

iPadOS 9.2.1

13D15

OS: iPadOS
Version: 9.2.1
Build: 13D15
File Size: 1.79 GB
Released: 2016-01-19

About This Firmware

iPadOS 9.2.1 (build 13D15) is an official Apple IPSW for the iPad Air (WiFi), released on 2016-01-19. The download is 1.79 GB and is served directly from Apple's CDN. This firmware is no longer signed by Apple. Standard downgrades are not possible, but the file remains available for reference and advanced use.

Verify the download using the checksums below.

Filename

iPad4,1_9.2.1_13D15_Restore.ipsw

Checksums

SHA-256 4a02855f47043ad1d32c9ee643204786eeb5763dac23c34d4dd7ccf7ccf596c0

SHA-1 e6044aee91bb1658f2b4b66d7b98e4071171a342

MD5 4ee902c48f938f4c436b641e58cff9ca

Direct URL

http://appldnld.apple.com/ios9.2.1/031-47698-20160119-8C39F720-B968-11E5-AEA0-B14A8FD31F8F/iPad4,1_9.2.1_13D15_Restore.ipsw

Download IPSW

Other Devices

iPad Air 11-inch (M4, Cellular)

iPad Pro 12.9-inch (Cellular)

iPad6,8

iPad Air 11-inch (M4, WiFi)

iPad16,8

iPad 4 (WiFi)

iPad3,4

How to Restore with This IPSW

iTunes / Finder

macOS & Windows

Download the .ipsw file to your computer.
Connect your iPad Air (WiFi) via USB.
Open iTunes (Windows / macOS Mojave and earlier) or Finder (macOS Catalina+) and select your device.
Update (keep data): hold Option (Mac) or Shift (Windows) and click Update, then pick the .ipsw file.
Restore (erase & install): hold Option / Shift and click Restore iPhone…, then pick the .ipsw file.
Wait for the process to finish - do not disconnect.

Restoring will erase all data on the device. Back up first.

3uTools

Windows

Download and install 3uTools from 3u.com.
Connect your iPad Air (WiFi) via USB and trust the computer on the device.
Go to Flash & JB > Easy Flash.
Click Import and select the downloaded .ipsw file.
Choose Flash mode: Update keeps data, Restore wipes the device.
Click Flash and wait for the progress bar to complete - do not disconnect.

Only flash firmware that matches your exact device model.

DFU Mode

Recovery tip

If your device is stuck in a boot loop or iTunes/Finder does not recognise it, enter DFU mode first, then select the .ipsw file as normal.

iPhone 8 / X and later

Quickly press & release Volume Up
Quickly press & release Volume Down
Hold Side button until screen goes black
Hold Side + Volume Down for 5 s
Release Side, hold Volume Down 5 more s
Black screen = DFU active

iPhone 7 / 7 Plus

Hold Sleep/Wake + Volume Down for 8 s
Release Sleep/Wake, keep holding Volume Down for 5 s
Black screen = DFU active

iPhone 6s and earlier

Hold Sleep/Wake + Home for 8 s
Release Sleep/Wake, keep holding Home for 5 s
Black screen = DFU active