Unfortunately right now the project is stalled due to the need for PogoPins to interface with the tablets PCB. The only ones available are in large quantity (10,000+) orders. I also don't have any specs for the other pcb test points except the ones in the Wiki. Most likely the others are JTAG interface test points.

Fortunately I have a new tablet to use now. Thus I have to go ahead and send the dead one back. So I will never know exactly what killed the old one. I did, however, have a fun time disassembling the old one. It was rather easy and straightforward process and the same as thoughtfix .

The one interesting item was the PCB backup battery. Also, the RF shielding is via snap on covers which are NOT soldered to the pcb. Therefore it should be a simple procedure if someone wanted to trace the interface pads back to the chip to find the JTAG pinouts.

Maybe some day when I have more time. . .