This review may or may not help, it does describe the process, you can reverse whatever you do with either a solder sucker or braid.
Basically, I’d want at least a 25w iron, for preference, I use a 40w iron, I want to get the heat in quick, make the joint and get out quick, less chance of heat build up.
I would suggest follow the guide, be sure you can remove the solder joint and try it. I do think someone said you can use a lead pencil to test, ie draw a line from star to ground ring. If it does what you want, solder if not, wipe away and try again. When you find the right group, solder the connection to make it good.