Hi audi a3 2012, went to clone a key and as it was doing it on the rw4, i pluged the hex+can in ob port just to get the serial number of it to register it, went in to engine read that then out again got the number all ok , by that time key was cloned , tried the both keys , nothing, lights come on dash, but doesn't even try to start, any ideas or anyone close by can help, in chester, thanks paul 07930301530