How to factory reset android (4.1) tablet without boot menu? My 8-year old son have a Denver TAC-76001, he loves testing settings etc. After setting a pin-code password he cannot recall the code.

Since we cannot start the tablet I have tried make a factory reset without success. This is what I have tried:


Shut it down.
Press power and Vol + (or Vol -) until the boot android robot is displayed.


( at this point there is no (visible) boot menu )  

3.1. Press Vol + (or Vol -) as if there was a menu and press on/off as enter-option. No success - pin-code needed.

3.2. Wait about a minute (which leads to reset according to a youtube-clip) until it restarts - pin-code needed.

3.3. Download firmware for the tablet, follow the instruction in order to format and re-install. No success - nothing happens when I try to format the tablet.

Now I am out of ideas... 


New ideas, tools etc. are warmly welcome!


Regards!



I moved the problem from stackoverflow.com since this seems to be a more accurate forum.
According to the manual for your tablet, there should be a "Reset" button.  Try holding it while powering on the tablet and see if it boots into special mode (recovery) that lets you perform a reset.