How do you double back in the Android tablet?

[AC Question]

how do you double back in the android tablet

Have a new visual land android tablet 9e. The voice keeps on saying to double back and hold a button for a long hold. What does it mean to "double back"? Looked through the manual and it does not explain that. Can not do anything with the tablet. Hope someone can help.

 

[B. Diddy]

Re: how do you double back in the android tablet

Welcome to Android Central! What voice? Is your tablet speaking to you? What other kinds of voice responses are you getting?