Download iPadOS 13.3.1 (17D50) for iPad Air 2 (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 iPad5,4
iPadOS Version 13.3.1
Release Date 2020-01-28
Update Date 2024-06-03
Sha1sum
4dd3263311b82380c5812d999184858ea3cc76e9
Sha256sum
18e1030ff76a40c98b501b91a19d5067eaffe2b85e93dc85342d8c3140d1e230
md5sum
5febfae0a5a1fa5c804a6552a53e6c0d
Size 3.39 GB
FileName
iPad_64bit_TouchID_13.3.1_17D50_Restore.ipsw
Status

Download IPSW (3.39GB) Check device info
Release Notes

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

iPadOS 13.3.1 includes bug fixes and improvements. This update:

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

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