Deregistering a vehicle with a non-stock tune

[blistovmhz]

I sorta asked sales/support about this, and several other things before purchase, and turned out everything they'd told me was wrong.
I'm selling a vehicle to which the InTune is currently registered. The vehicle has a 5.3 swapped in, so of course I had the ECU tuned to remove emissions/antitheft and set fan triggers and such. When I spoke to sales before purchase, they confirmed that I would be able to take a backup of my existing tune, save it, and flash it back to the truck to de-register it, but that doesn't seem to work (just like when they confirmed that I'd be able to modify fan triggers with the InTune, for my 05 5.3L ECU, and when I received it and found out fans weren't supported, support laughed at me and directed me to their list of supported applications, which clearly stated that the fan triggers were supported....)

So anyhow, as with every time I deal with this device and something goes wrong and support laughs at me, I tried to flash the original image I'd backed up (prior to making any changes with InTune), and of course it screwed off half way through, locked up, and now my truck won't start. What in the shit guys!?

What do I need to do, to flash the image I'd saved, and deregister the device from my ECU? I have the original image, I have MD5 sums of it so I know it's not corrupt. I cannot flash a stock tune to this ECU, as it's not in the original manufacturers vehicle. I was told this wouldn't be a problem (pre-sales), because the InTune would always retain a backup of the pre-intune image.

[mikel]

it should be able to restore for sure.
The most common issue i see with swaps are harness issues. Id eliminate anything that may be drawing voltage on the harness and try again, if not give us a call and we'll try to get it to recover the pcm.

Thakns

[blistovmhz]

it should be able to restore for sure.
The most common issue i see with swaps are harness issues. Id eliminate anything that may be drawing voltage on the harness and try again, if not give us a call and we'll try to get it to recover the pcm.

Thakns

This is in a vehicle that was running perfectly, 1 minute earlier. It was not a harness issue. I'm not sure what happened, but I flashed my backup tune back in and it works fine now. But every time I try to flash the tune that the InTune originally backed up, the ECU craps out, so I have no way to deregister my device from the vehicle. What should I be doing next? I cannot flash a stock 5.3 tune as I need to retain the fan triggers and other programming which was done prior to the registration of the InTune.

[mikel]

please post the info.xml file from the intune drive.

[blistovmhz]

Thanks. Called support to discuss. Guy I spoke to wasn't confident we'd be able to de-register the vehicle properly, while maintaining my original (non-DS) tune, so he just gave me a code to manually de-register without touching the old vehicle. All good now.