My N900 USB fell out for the second times (first time cost me $120 to repaired) And the second times after a long day of frustration of trying to soldered it back onto the board, I managed to get it back on but still won't charge nor doing data because the 5 pins are not welded on to the board. I rush into JayCar electronics store and bought myself a 0.2mm low heat Soldering Iron. Got home and use a magnifying glass, A LED torch, a Magnet, Epoxy Glue, HairDrier and a tape. Operation was a success

Tested and confirmed working and Glued it all with Epoxy Rock solid.
This device just hard to give up on me somewhat. But I didn't give up on it and it doesn't want to be thrown away either.

N900 is a rock solid and hardworking device
But SGSII will be my second phone I'll use two phones