Originally Posted by
onehundred80
Just reflowing the solder is not the best solution.
You should remove as much solder as possible and clean the terminal until you can see the copper. Then add flux and apply the solder when the terminal is hot enough to get the solder flowing on it.
Otherwise you just hide the oxide on the terminal, it may look OK but the contact is not better by much if at all.
Exactly. Effective replacing or repairing of solder points requires owning and operating braided solder wicks and / or a solder sucker iron. Otherwise have someone else do it.