I recently bought a used FBV Express MkII for my Spider V 30 amp. However, the pedal board doesn't do anything when plugged into the amp. When plugged in before the amp is turned on, the light beside the A footswitch (no matter what preset the amp is on) will light up but none of the buttons work. When I plug it in while the amp is already on, the light beside the letter for the current preset lights up but none of the buttons work still. I had tried updating the flash memory of the FBV but it still does the same. The FBV is recognized by my computer though.
The amp is brand new. I bought it less than a month ago. The cable is brand new, I bought it a week ago to use with this. There are no bent or broken pins in either the amp or FBV. I have no clue what's going on but I would really like for this to work.
The previous owner of the FBV didn't have a cable to use for the amp so I assume he was using it solely as a midi controller but he claims to have barely used it.