No display on Neo. Buttons purple and green
 

The Neo's been in the car for two years and works fine. We used it to richen it up at idle and between 3-4k. It sits under the floor mat.

Pulled it out and nothing is showing on the display. And the buttons glow in green and purple.

Any ideas what could be going on? It seems to be working since we dont have the dieing at stop lights nor the stumbling while accelerating that the Neo fixed when we w/b tuned it.

Thanks.