Quoted from EasternBloc:
This would be my first time to desolder or solder anything to/from a board, so I go in with great trepidation.
Desoldering is something that is a straightforward affair with the right tools and a nightmare without. I splurged on a Hakko desolder gun, what a difference. If using a sucker style desolderer take your time, until all the pins are released the header is staying put. It takes patience.