If anyone has some insight here, it would be appreciated.
A remote tuning customer was trying to begin a strategy change and missed that I specified he "write entire". He instead did a write calibration and says it wrote for a while, then stopped. I'm not sure if it "finished" or aborted though.
He now seems to be unable to read or write the vehicle (2011 Mustang GT). My guess is that only writing the calibration data, with mismatching strategies, created a PCM state which it no longer recognizes as the one that he licensed.
He says "read vehicle" has always been greyed out, even before the botched flash, and when trying to write, it says "unlicensed vehicle"
I'm having him attempt a "return to stock" with his old tuning device, or reflash his old tune with that device, to see if we can get the PCM back into a normal state.
Any other ideas?