Hey, The Following Worked for me.
- Press and hold both Vol Up + the Power button for 5-10 seconds and then release them both. The tab should display the SANSUI logo.
- At the logo screen - quickly short press the Vol down button and the Android guy lying on his back with his bowels opened should display.
- Short Press Vol Up/Down for the Android system recovery menu to appear.
- From here you can "Wipe data/factory reset"
Tip: Use Vol Up and Down button to navigate and highlight - and short press the Power button to select/confirm highlighted options. After all that, your Etab 704 should then be reset to its factory defaults.