Download iPadOS 15.3 (19D50) for iPad Air 4 (Cellular)

You will have to note that you can only restore signed IPSW firmware files using iTunes or 3utools.

❌ This IPSW firmware is not being Signed by Apple

Firmware Identifier iPad13,2
iPadOS Version 15.3
Release Date 2022-01-26
Update Date 2022-01-23
Sha1sum
c3ab98b8bbb7791344985ab98187934295a185d7
Sha256sum
64836b04c81bc0fafd47ae80ae05dd085e182b3640a63c3a9b1709ee4254696f
md5sum
eca137491796c9aa81449fac9fc163c8
Size 5.44 GB
FileName
iPad_Fall_2020_15.3_19D50_Restore.ipsw
Status

Download IPSW (5.44GB) Check device info
Release Notes

It should be noted that these are the official release notes for the from Apple

iPadOS 15.3 includes bug fixes and security updates for your iPad and is recommended for all users.

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

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