|>>|| No. 26433
Usually the USB port is on a dedicated daughterboard. If that's the case, replace the whole thing; it'll be much easier.
If you have to replace the port itsself, you'll need some Helping Hands, tweezers, small needle nosed pliers, a very fine tipped soldering iron, a fine solder sucker, and a steady hand.
As you can see from the photo you posted, micro USB ports tend to be held in by the 4 metal prongs for stability, and these are usually soldered in. You can also see that the 5 pins are incredibly close together, and are surface-mount (i.e. meant to be done by machine).
You'll need to start by desoldering everything (and a solder sucker is indispensable for this; if anyone tells you to use wick, punch them in the face). You may have to use the pliers to work the metal stability arms free, and then carefully lift the port out. Make sure all the solder is off -- if you damage the pads, you've fucked the job.
Putting it back on is where the fun begins. If the tip if your iron is not thin enough, you'll find soldering the surface mount pads impossible, and even if it is it's going to be frustrating as fuck -- if you accidentally bridge them, you'll have to have another go, and each time that happens (and it will) you increase the risk of damaging your board.
Watch some videos, but I'd recommend seeing if you can just replace the whole daughterboard (if it has one).