Download iPadOS 10.3.1 (14E304) for iPad Pro 12.9-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 iPad6,7
iPadOS Version 10.3.1
Release Date 2017-04-03
Update Date 2017-04-01
Sha1sum
61a337784b61d5a82cad272844868b1ab4dd3702
Sha256sum
ebb4b83550d848af8d81587d0391ac489f6c5ed17dbd467634ef5b12897d36bc
md5sum
a5313ed1fae78c051d88a53cf38c055e
Size 2.33 GB
FileName
iPadPro_12.9_10.3.1_14E304_Restore.ipsw
Status

Download IPSW (2.33GB) Check device info
Release Notes

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

iOS 10.3.1 includes bug fixes and improves the security of your iPhone or iPad.

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

https://support.apple.com/HT201222