if your mib2 unit its written "HW:04xx , SW:04xx " then offcourse you can update to 480
My unit has SW:0475 and HW:H41. I'm attaching a screenshot of obd11.
When I get in the car, start the engine, the FM radio does not play(MIB is on). When I go to Media and SD card music plays. I go into the FM radio again and there is silence. It takes a minute or two for the FM radio to start playing music. This is annoying, maybe newer software will fix it?what do you mean by long start .? you been your radio is play after a delay .?