How to recover data from deleted account?


AC Question


My girlfriends dad borrowed our Nvidia Shield Tablet. He recorded some videos using Guest account which i made for him. After he gave us back Shield, i removed this Guest account (for safety and performance). He asked me, if i can send him his videos o_O. So as can you see, case is important. Is there any possibility to recover files from account that was deleted and is not anymore accesible on hardware? Shield is running on 6.0.1.