I'm having a few problems with mine so wanted to start with a factory reset. I spoke to customer support and they said to hold the volume plus with home pressed while powering on, this does not work and It was suggested I return to where I bought it from.
After some trial and error this is what you do, make sure power is plugged in, power off the tablet. Now keep the power and the settings key pressed, keep it pressed and it will eventually enter a screen were you can hard reset the device, use the volume controls to move up and down and the power key to accept the selection.