LTE signal was good. I was travelling on my usual routes in the city. There are black spots but I know these places and lose signal completely there. This update issue is definitely unusual. Usually takes a few seconds or maybe a minute. Signal in car is strong, but could be Audi LTE service provider internet issue. EE in UK I believe, but very unlikely to have mobile issues for a week and not hear about it. More likely something to do with the car that is slowing the connection. At first I was wondering if maybe the Google Earth app was being updated, but in total it's been updating for probably 6 hours over several days, but I don't know if it restarts each journey