So had a customer who had previously installed an SCT "canned" tune in his car. He has since lost the handheld, and wants to change the tune since he is changed modifications...No big deal, ill made a new tune for him with HP tuners......NOPE. Read his PCM and comes up as LOCKED. Can not open it, can not flash over it. So I tell the guy that he will need to have the dealer reflash the vehicle to stock, since he does not have his handheld anymore and can not return it to stock that way..... Well the guy is an lawyer for large local business. I have never heard so much legal mumbo jumbo that I don't understand, but WOW was he pissed. I recall a few old GM tuners doing this in the past locking their tunes, but now SCT on even just a canned tune....Im sorry but if they do not want their tune read, it is their responsibility to hide it, they have no right to render a customers property inoperable unless they continue to use their product... Imagine if once you plugged Xbox 360 into your TV, and then pulled it off to use a PS4 the TV would not operate anymore because microsoft locked the TV software forcing you to only use the Xbox or having to have the TV manufacture reload the original operation software.