Steam Deck Controller ID Lacks Any Letter Code

I have an LCD model Steam Deck with the only modification done being an SSD upgrade inside. My left stick's rubber ring up top has gotten loose so I'm debating ordering a replacement from here, but hit a snag. Upon checking the Steam Deck Controller ID on my deck, I don't have a proper ID that matches what I've seen online; rather, it simply reads '12345678' with no sort of letter code at all. Is there some way to fix this within Steam itself? Is there something on the stick module inside that also marks whether its a Type A or B on the board?