Download iPadOS 15.3.1 (19D52) for iPad Pro 9.7-inch (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 iPad6,3
iPadOS Version 15.3.1
Release Date 2022-02-10
Update Date 2024-06-03
Sha1sum
cb1cd983377c05a494bea68661ef1053e60e6499
Sha256sum
40529b1c59685ab0c89ddfe8ec5ad65631fc917f966aac2b4975855ce9af4f67
md5sum
81286a0afc457b6f15e6108c6b351f7f
Size 4.86 GB
FileName
iPadPro_9.7_15.3.1_19D52_Restore.ipsw
Status

Download IPSW (4.86GB) 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