Problem: What BE KEYS do you use to write with Launch X431 IMMO Plus X-PROG3? I tried VVDI Benz BE Key and couldn’t read key info. Solution: Xhorse VVDI BE key green board works. Xhorse BE Key V4.3T with yellow PCB not working. And also aliexpress cheap one works ( but on those you cannot change frequency). If cannot read VVDI BE green board, try pull up the key a little bit. Sometimes only pcb put in a hole and pull up 10mm.
Problem: Tried to diagnose a Hino truck 2011 using Launch X431 Pro3S+ smartlink HD diagnostic scanner, but autovin failed to decode vehicle information. Any idea? Solution: Heavy duty does not support AutoVIN feature. Need to select vehicle model and year manually. If manual selection not working, do a firmware Fix and try again.