Can anyone help?

I sold my PCATS tuner on eBay and they received it today. But I just recieved an email to say its not being recognised on their empeg. I can guarantee that it worked 100% on my empeg. I just unplugged it from the sled and posted it off.

Is there any known problems? I have suggested ensuring v2.00 final, loose wires etc.

Hope someone can help.

Phil