I'm still not sure whether I'm just an idiot or if there's something wrong with that connector.
I have crimped tens of RJ45 connectors before, so I did not expect any problems when I was asked to repair the wire for the pedals of a gaming steering wheel. The RJ45 connector was broken, so I just cut it off and bought a box of connectors for a few crowns to replace it.
However, this is what I got: I have absolutely no idea how to secure the cable inside. I tried pushing these two tiny pieces in as you normally would when crimping, but they are very fragile and it seems that they are not even supposed to be pushed in. I still have absolutely no idea how this connector should be crimped. For now, I just took a whole new cable and repaired the pedals by replacing the entire cable with a fresh connector. But I'm still wondering how this piece of crap is supposed to work.
Jan "Jenkings" Škoda - blog
Simplifying IT, Amplifying Knowledge