easy one, you need to resolder or replace (what i recommend) the USB connector has 4 pads (smd or thruhole?) and 2 anker pads (for stability) (and you MUST solder these otherwise it will break)
i'm pretty much sure you have no idea of soldering and Level 3 repair what so ever :)
so you need to get soldering iron and solder and so on ....investing in Level 3 is good idea (if you have the money ) (i have cheapest level 3 $@$* myself ....it's soooo expensive)
you could glue it inplace but that's prety $@$*!& job and if it breaks again you have dubble the problem
solder yourself or ask smb.