11-17-2012 04:18 PM - edited 11-17-2012 04:19 PM
Hi and Welcome to the Community!
The data or the app, please? And, what is the proper name of the app? I don't recognize "notebook"...
Also, how exactly did you perform the update? On the device directly? Or via your computer via USB? The answer is actually quite critical concerning your available restore path should you have lost that actual data.
Good luck and let us know!