Chip was transferred, new batteries, no flash and I just tried to "sync" the key to the vehicle for the 10th time per the manual and nothing..

I saw a thread in the "Crossfire Repair collection" about repairing key fobs and I might just try that as a last ditch effort. Basically checking all contact points for broken joints and touching them up with a soldering iron.

I'm also wondering if those two wire contacts that stick out from the board and make contact with the batteries got bent when I opened the key shell. But then again, I'd imagine as long as they make contact with the batteries it should be fine and they do.