Screen FROZEN!! wont turn on or off stuck on facebook how do i reset

[derrickhardware]

how do i reset my android its a pandigital supernova 8 inch ereader...screen frozen cant touch the screen or move anything ...is there an easy way to take off the back and remove battery

 

[probbiethe1]

try holding down the power switch for like 20 seconds

 

[TheDroid13]

Look around on your tab for a reset button. It will be the size of a pinhole, and you will need to press it with a paperclip.

 

[lizgee]

if you hold the power button for about 20 seconds it will shut off. However, when I did and powered the tab back up, it was still frozen. it actually seems to be that the screen it unresponsive to the touch. when I first researched this product before buying I didn't see this as an issued, but now, everyone is saying the same thing. I noticed, this happened a few days after the firmware update was completed... perhaps this is the problem? anyone else noticed that this was after the firmware update?

 

[marksayson]

what's this firmware update all about and when was this implemented? i have my supernova " also just frozen now! oh my! is yours fix already? if yes, how?