Connectivity issues DIYPNP
 

I bought this DIYPNP second hand for my first attempt into electronics. It’s for a 90-93 and came needing a few updates and jumpers to be installed Before I added jumpers I was able to put firmware on the board. Now that the jumpers are on I tried to add a tune and it will not recognize the board. I tried reflashing firmware and no dice. I’m using a DB9-usb cable converter, windows 10. Comports are set at 1 and drivers are installed. I’m getting 12 volts via the 12 volt port. I cannot for the life of me get it to connect to tunerstudios. Here’s my board, what did I do wrong? Thanks!
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