Very close inspection of the connector pins is recommended. The attached picture is of the board side of a connector. The solder holding the connector to the board was actually fine, but the plating came loose from the pins. You can see some corrosion on the raw metal of the pins (second pin from the left was worst). Just reflowing the solder on this connector probably would not have resulted in a long term fix.
Here is what the solder joint looked like…
Glitch