Get you a few old junk boards and just go to town on them pulling stuff on and off you really need some through-the-hole boards cause that is what you will be working on in reference to the usb. Personally? I think your usb's are lifting from the pins inside and not the board which means they will have to be de soldered , using a solder wick on MBP motherboards for through the hole is not easy I use a desolder gun , but you may be able to get away with pushing back into place and solder the other side.