Replace FP1 / FP1U headphone jack

Sure thing. I bought this one http://www.ebay.de/itm/131365292450?_trksid=p2060353.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT

it fits as for the size more or less (had to sand off the little plastic pins on the side) and the contacts are pretty much at the right spot, although they are bent to the wrong side of the jack. As for fixing it in position I used 4 tiny points of hot glue - be very careful with that because you dont want to get any of this on the connectors for cables.