Need new solder spot for sync button

[RapidFeur]

Alright, so I purchased a rapid-fire chip about a week ago, and just got a torx driver about 2 days. ago.
My problem is that when soldering, I had everything correct except for the sync button which just didn't want to stay together. Now it doesn't even want to stick (wore out the connections or some like that, the solder doesn't want to stick). So now I cannot even solder to the sync button (I've tried both spots on the front of the board). Is there anywhere I can solder where this will work? I have an old matrix board if that helps. I tried one of the pins on the transistor on the back, but I accidentally wore that out (aka solder doesn't wanna stick anymore). I simply need a new place to solder to.

THANK YOU!@

[SYSTEM aka (Cyberpyrot)]

Alright, so I purchased a rapid-fire chip about a week ago, and just got a torx driver about 2 days. ago.
My problem is that when soldering, I had everything correct except for the sync button which just didn't want to stay together. Now it doesn't even want to stick (wore out the connections or some like that, the solder doesn't want to stick). So now I cannot even solder to the sync button (I've tried both spots on the front of the board). Is there anywhere I can solder where this will work? I have an old matrix board if that helps. I tried one of the pins on the transistor on the back, but I accidentally wore that out (aka solder doesn't wanna stick anymore). I simply need a new place to solder to.

THANK YOU!@

lightly brush the solder spot with abrasive paper and use flux...