Thanks for all the help and replies! Made -some- progress? Somehow I got it to boot successfully with that board attached at one point but it went back to boot looping again. I may have to go over it with a (literal) magnifying glass and see if I...
Necro'ing this post since this seems to be one of the more 'in depth' threads on the Google's for this laptop with some more knowledgeable folks.
I recently picked this up for some tinkering and all has been going well so far. I set it aside for...