visual land tablet stuck on no command, send package adb sideload filename?

A

AC Question

android 4.4.2 i just powered up from sleep mode and noticed i was now in what i think is called root or reboot mode?? looking at green android guy , did not know what to do, hit power again and now frozen. volume up and power keys dont do anything.. is this tablet toast?? i have held for one minute and still nothing... anyone have any sugestions????