I was in the same position as reported by Jim Fournier, above: ‘I'm having the same issue although none of the fixes I've found seem to be working. When I plug my tablet in I get the battery icon with the lightning bolt in the middle (like it has no charge) then I immediately get the battery icon that shows a full charge. Then a blank screen and nothing happens. ‘
Spent hours trying key combinations both whilst charging and with cable out. Eventually got a bios-style menu with 3 boot options. Chose Normal Boot and all was well again. Hooray!
The key combination was either Volume Down + Power or Volume Down + Power + Home and I did this while there was some sign of life i.e. when the charging level was showing.