Tools needed: Soldering station
Made in Chine… oh no… Europe =)
After soldering → no flapping?
That’s really interesting 
So after soldering issue gone?
You can see that one contact is not soldered properly, after i desolder this port, fix jammed pin and solder it back → problem gone.
It also fix “fsc errors” on this port.
facepalm
Come on guys!
Quality control! Learn the phrase please!