Good afternoon, my parents C max 2016 went into the garage for a service and mot. The day after they noticed sat nav was.not working and was saying sd card not inserted. So they tried the card again but still.did not work, they also tried another card which was older maps. But still no joy. I cant go over there at the moment due to covid, but trying to get them.to try things over the phone, ive got them to do a master reset but that didn't make any difference.
Any help would be great. I think its a sync2