Okay. I've tried updating calibration. It failed loading from trinity to pcm on truck. It had a custom tune on the truck. We took off the custom tune from trinity. So we figured it would upload a cann tune from the trinity. But it would say it was trying to save the back up tune but there was none ...

Hey. I tried this on my 2012 ram 1500 5.7. & it said Calibration update failed. Then I back out & try any tune & it won't tune. It would say same thing in his pictures. I can't find the original tune.