just got and wont load

got the predator from my brother he had it on his truck and traded it in lease was up . he put it back to stock. it ays calibration not supported on the screen. I updated it to v.9r31 and still wont work. what do I have to do? I just want better mileage and adjust my tire size
I have a 09 Silverado 4x4 5.3L

[mikel]

well, if 9r31 is not supporting it, thats the latest update so its not likely to work, unless the truck actually has a really old cal and needs to be updated.

so I should call in and talk to someone or how can we figure it out?

[mikel]

you can look into having the truck updated by a dealer to see if that allows it to work, other than that a Trinity or inTune will be required as the Predator is no longer being updated.

Thanks

what do I have to have the dealer do? or can I do this with the tech2 or gm online laptop that I have access to at school?

[mikel]

yews, tech2/TIS flash will be fine.

I am doing the upgrade to in-tune. will I need to do the recal to the car still?

[mikel]

not likely.