I don't know of anyone losing uncorked status. I know of a couple unsuccessful uncorking attempts, both by forum experts here on rooted cars as well as service centers, in both cases trying on cars without qualifying hardware. I even saw a couple half uncorked cases, where torque increased but not power. Or power without torque. But those cases always resolved themselves on reattempts. But never anyone losing uncorked status....I remember some people said it was uncorked and then they lost the uncorking?