Hi,
I had the same problem when i bought my first x3 (eBay).
My husband's an electronics engineer, so I had dig around and found out that I could buy the connectors from the US (I could only find one supplier) and hey presto! I now have a perfect x3. The replacement connector looks a lot more sturdy as well.
Anyway.... Hubby is now willing to fix the things as a bit of a sideline, provided enough people are interested to make it worth his while shipping the connectors over.
Let me know.
Best wishes
Sapphire