I just got my sct flash programmer today. I plug it into the obd2 and go to performance tune, it says to turn key on but do not turn car on which is what i do. It says like loading or something and then i get a weird like powerdown message and it wont work to let me continue. basically i cant tune my car. Is my flasher sposed to say xcalibrater2 or SFdevice because mine is sf device with an xcalibrater2 manual.