Recovery mode reset ,system is stuck on erase

[Recovery Question]

The Acer tablet is a model A-1 810. Android 4.4.2 kitkat.How to get back to to reboot after
3+ hours" erasing" ?

 

[AlphaTango414]

Try holding power and vol down for 15-30 seconds. If not after the battery runs down and powers down, charge and try to boot into the device.

 

[NNyarko23]

I am having the same issue. It had been shutting down randomly. None of my apps would work or cause it to crash so I decided to reset it and wipe everything. Now it is stuck on that annoying robot erasing but the progress bar has not moved. I have tried shutting it down, holding down power and volume and it just reboots back to the same damn screen. I am throwing it against the wall and Android can suck it! Apparently I purchased a POS.