Please bare with me new to all this tunning. I have recently purchased a v2 and have been messing around with it and i plugged into a gm vehicle and went to the tune tab brought up the table and turned off the afm. Now my next step it says there is a vin license on it do i select the cal flash tab and hit cal flash to flash that tune back on it? confuse on this part like I said new to all of this thanks in advance