If there are no instructions there specifically for your tablet, try some of the methods for other tablets. One of them will probably work and you won't hurt anything by trying as long as the tablet has a good charge or is plugged in during the reset.
Unfortunately, I have tried all of the suggestions, but no one worked for my tablet. Do you have any other suggestions? I thought that I might have to root or flash it, but this solution might be very dangerous !?
If the tablet is running, "Settings” - “Privacy settings” - “Factory data reset” should reset it. If it's not running, one of the methods in that thread should have worked. Otherwise, I'd suggest you contact Kynect: http://www.kyanikynect.com/support.html