I prefer to use normal soldering iron combined with a solder that has a very low melting temperature to remove ports when ever possible.

Apply Flux to all connections and use your soldering iron to evenly distribute the alloy solder to the connections on the top and bottom of the board. Use a temperature around 360-380 degrees to and after about a minute you should start to feel the port release.

Do not pull to agresssivly on the port or it will rip the board, go very slow and let the board release the port. Use tweezers to hold the port while using your other hand to control soldering iron.