[Q] pin number wrong tablet locked

I read in various forums not to send in an absolute manner the assistance asus tablet in, then tried to solve alone, my nephew has entered the case of the pin numbers on the entry of Android,

I tried to press power button to shut down the tablet more volume, but do not wipe out the writing on the menu to choose from,
only comes out the little man android with no written wipe data.

The tablet is in January 2014 although I believe that this kind of problem can not be addressed under warranty, not a defect, but a harm done.

There is no way to re-install any rom compatible, from computer? because the tablet can not do anything at all,
start, get notifications of gmail and whatsapp, pero me this pin from inseire that obviously do not know.

Thanks in advance x some suggestions.

greetings

Paul