Download iPadOS 13.5 (17F75) for iPad mini 4 (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 iPad5,1
iPadOS Version 13.5
Release Date 2020-05-20
Update Date 2020-05-14
Sha1sum
e13b6b0a3f201c8a5cb7d3a30da8540ea917a154
Sha256sum
99a08d89e7b3bb1c009ae1383dba6fd3a5566265becb3edd04de5d97000ea26f
md5sum
ae0928b72b7b6339eb88626c8f3089d7
Size 3.43 GB
FileName
iPad_64bit_TouchID_13.5_17F75_Restore.ipsw
Status

Download IPSW (3.43GB) Check device info
Release Notes

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

iPadOS 13.5 speeds up access to the passcode field on devices with Face ID when you are wearing a face mask and introduces an option to control automatic prominence of video tiles on Group FaceTime calls. This update includes bug fixes and other improvements.

Face ID and Passcode

FaceTime

This update also includes bug fixes and other improvements.

Some features may not be available for all regions or on all Apple devices. For information on the security content of Apple software updates, please visit this website: https://support.apple.com/kb/HT201222