I'm running DashMeterPro on a samsung tab3 for pCARS, AC, and iRacing. The AC and pCARS are the same app so that is cool! However, like you Lancey I cannot for the life of me get the rFactor2 version to run so I empathize having the same issue. Are you running the app over WiFi? Everyone complains that the USB method does not work and that the seller should remove that option in the details. Have you tried your app with AC if you own the game? Did you contact the seller of the app? he may have some tricks up his sleeve to make the app work. I plan to contact the seller and see if he can help with the rFactor2 version. good luck.