So I bought a 9550 tuner from a friend of mine, I watched him set it back to stock when he removed it from his truck to put the 408 out and stock 5.9 back in, now I need to tune my truck and it says it has been used in too many vehicles (I know for a fact he only used it in his one truck and he bought it brand new. So figured I would call SCT, they said tough luck we don't even have the tool to un-lock it anymore even if I paid them their normal fee to do it because it is so old (6 years). Does anyone know how to make this thing work again? I am not trying to use it on a mess of vehicles just my one truck (1999 Dakota). Any help?