Download iPadOS 9.3.5 (13G36) 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 9.3.5
Release Date 2016-08-25
Update Date 2016-08-20
Sha1sum
f4f3b2b7398acba84565c6f720d78542ac6be4e2
Sha256sum
6e12abfb08cf299032e1b5b06e99668ca58b1491920ed542f22dd803f155d24c
md5sum
89225fe79bf22b00f1d44c2b522a2df3
Size 1.87 GB
FileName
iPad6,3_9.3.5_13G36_Restore.ipsw
Status

Download IPSW (1.87GB) Check device info
Release Notes

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

iOS 9.3.5 provides an important security update for your iPhone or iPad and is recommended for all users.

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

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