in a panic

[poundu1]

Ipad Air 2

I bought this new at the Apple store

I have not updated this to keep the version of Keynote that I have hundreds of hours of work for my startup.
My 12 year old daughter got ahold of it and updated it, now its stuck on "enter 6 digit passcode".
I have never had a passcode of any kind set on this device.
I do/did have it on my Icloud account, but my email has changed.

2 questions:
Since I have never set a passcode, is there default 6 digit code?

Once in, is there a way to reverse the update to use the old Keynote version?
Thanks

[Mr T]

It's new on IOS9, Apple has basically changed to 6 digit keycodes. Set a six digit code through your Apple account and log in to keynote. Also make sure you have an icloud account and use that a lot for authentication and accessing stuff - it a) makes life easier and b) if something goes wrong you can recover it through icloud.

... And c) NEVER ever let anyone mess with your tech if you store critical data on it, back it up always to a NAS or other server, or have more than one PC/Mac/Macbook..

[poundu1]

follow up.
Lesson learned, recovered the ipad O/S, but not the data.