Download iPadOS 13.3.1 (17D50) for iPad Air 3 (WiFi)

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 iPad11,3
iPadOS Version 13.3.1
Release Date 2020-01-28
Update Date 2024-06-03
Sha1sum
a2318ee202ab0d1ae79c60ab13d80fc78cd2fb08
Sha256sum
cd5e28bffa5c6abd01eb3521a16c81772f875a9c0e3a55997d84eb05ef9d548c
md5sum
47b144dcea8f93bd519a388085ec45ce
Size 3.77 GB
FileName
iPad_Spring_2019_13.3.1_17D50_Restore.ipsw
Status

Download IPSW (3.77GB) 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