I have never soldered anything and don't have a soldering iron. Also I have never tried too open the inside beyond the battery or SD card slots. Don't know how to. Guess I could maybe find someone who can do it for me if that is the problem or search for a video maybe.

tso -That is a good idea to charge externally. Never thought about that. Shame it is not the same battery as one of my digital cameras and I could try charging the battery in their chargers. I don't think the battery is bad because the tablet worked after dropping it until the battery went dead.

Frustrating because I love my N800.Thanks for the suggestions!