Help! Unsoldered pin during modchip install

[HolySorcerer]

I have a model 2 saturn with the 32 pin ic. While installing a modchip the 15 pin on the ic chip came lose and I was unable to resolder it. Does anyone know what this pin does? I can play backups on it, but they don't always work perfectly and I'm wondering if this is the problem.

 

[axcc12]

just do the a+b method it will work fine. what the 15 pin is it's the signal for the drive