Yes, I do believe that an inner trace was damaged. Hopefully it was only one. But suspect that it was just one since at the end, I was doing only one contact at a time between tests before it died.

I have repaired eight traces that were broken and with a little luck, I can find two connections somewhere on the board that would short the damaged inner trace. Any idea how I can find those? Since I have a good idea of under which test pad the damaged was done, I'm fairly confident of where it broke. It was bottom row, second from the left.

Also, is it reasonable to assume that the small holes next to the test pads go down to at least the next layer down? Maybe I could connect a couple of those? Also, this may seem like a stupid question, but how many internatl layers are there? Is it just one or two?

After fixing those other traces, I'm starting to get a little hope that I may be able to fix this thing.

Either way, I hope that this thread can serve to reinforce how important it is to be careful when installing this mem board.