I don't know if I have this in the right section because I don't know if it's a pcm or v2 problem. I used my last license on my wifes trailblazer with a P10 and had previously flashed it a few times without a problem but now I get the message that it hasn't been licensed, though the v2 shows a license for that vin and I haven't changed the pcm or anything else. I was going to make a change to the calibration so I read the pcm, and made my change but when I tried to flash, it kept aborting and saying the pcm has no calibration. I was able to flash a tune file to it from the repository but it wouldn't crank. I realized I'd forgoten to change the vin via the scan tool and did so, but still couldnt get it to crank so I disabled VATS in the tune but now I get the mesage that it isn't licensed, and so doesn't flash. I hope someone has a solution to this other than buying another license, but with it not running I may have to.