[link|https://www.ifixit.com/User/4106591/Jerry+Wheeler|@dadibrokeit|new_window=true] Well, I have nothing for ASC off the top of my head, but the thing that sticks out to me here is the word "Eiger" Which is Apple's code name for a chip on the dock flex, or that communicates through the dock flex. I don't know if I ever figured out what it is actually for (hard to do that when it's not on the schematic, just referenced),
I would think a [product|IF442-010|new charge port assembly|new_window=true] would be the way to go here. At least to rule it out. It's a pretty common part to go bad on any iPhone and commonly causes these restart problems.