You can not read all codes on W810i! No matter what hardware you use, may it be Cruiser 4-in-1 and USB-Smart, or may it be a profesional service tool like Cruiser box, you can not read all codes on W810i. You can try, but you won't get anything out of it, and then you will have to reflash it. If it would have been possible, don't you think the internet would have been full of this information, and everyone would be walking around with a cruiser cable in the back pocket and wotan/tms/davinci would be out of business?