hi, everyone. im hoping someone could help me, i've got a Shenzhen Saitu sdv268 unit. i'm happy with everything with this unit except the sat nav route66 is 2006 version and i would upgrade if possible. only problem is its built in and i dont know how to go about it. sd card is empty and i've tried to run Igo on it but nothing happens. please help with route66 upgrade-sdv-268.jpgplease help with route66 upgrade-zhu-z01.jpg please help thank you.