Is there a factory reset button inside the Kindle 4? (vs Software)

Once I have the cover off, is there a factory reset button somewhere inside the device? My Kindle 4 is unresponsive, though it appears to charge (charging light stays on for a while, then turns off). I would like to try a factory reset, or try other troubleshooting steps, but holding down the power button for 40+ seconds elicits no response except making the amber light turn off and then on again.