It seems like I would have a similiar / the same problem. Nearly all repair services in Munich regret to repair a fairphone, but they said, that not the “pins” of the USB port a broken, but the contact on (!) the motherboard. Therefore it is not possible to repair.
Then I found a repair service in Zwickau, Germany:
https://www.google.de/search?q=Mobiltec+24+GmbH+-&ie=utf-8&oe=utf-8&gws_rd=cr&ei=K7s5Von0JomVUYrmpqAI
They say, that they know the problem and will fix it for ~80€. The answer to my quote was 20 minutes or something!
P.S. Sorry for my technical english, I hope you will understand…