You're going to have to downgrade to iOS 9
To do this:
Go to https://ipsw.me, download the iOS 9 IPSW and then you go to itunes and go to summary, then you hold down the LSHIFT key and click Restore iPhone. Select your iOS 9 IPSW. Once finished, the iPad will reboot and you will have iOS 9
Next, you must jailbreak your device. Go to http://en.pangu.io and download the iOS 9 jailbreak tool. Then follow the steps.
Once you finished jailbreaking, download "Apple File Conduit" from Cydia. This will allow you to access your whole file system using your computer.
Once you downloaded Apple File Conduit, you now access your whole file system using iFunBox
Hope this helped