Download iPadOS 15.3.1 (19D52) for iPad mini 5 (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 iPad11,2
iPadOS Version 15.3.1
Release Date 2022-02-10
Update Date 2024-06-03
Sha1sum
ace4f5610a37e7b6cad88c4a238faa02cc5b7d8d
Sha256sum
ac9178634c9d7fde9d009e7f08a73e4821f1cabd2cd8e1f7662093a3c266a1d1
md5sum
8c2ecb1a8c04c89f9dcb858fc9e3da8e
Size 5.55 GB
FileName
iPad_Spring_2019_15.3.1_19D52_Restore.ipsw
Status

Download IPSW (5.55GB) Check device info
Release Notes

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

iPadOS 15.3.1 provides important security updates for your iPad and fixes an issue that may cause Braille displays to stop responding.

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

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