Had big issues with Live services after the initial 3 months free subscription. Mazda had ordered a new head unit after diagnostic test by Tomtom but live services came back to life, also the network connections started working and the sim card id /model id numbers repopulated so decided to stick to the original heads unit which has worked for the last month, instead of someone removing main part of headunit. However they went off again last week and only reappeared by trying the weather live sevice then saying I'd got a subscription and logging in with email and password, so time for Tomtom CS. After a lengthy telephone conversation to Netherlands(usual reset/turn off, reset to factory settings)today with a Tomtom customer service advisor, I got escalated to a TT engineer who tried to pair the sim card to my account, that seemed to work. They even agreed that some NB1 devices had an issue that was being worked on. Was asked to monitor and email any issues back to TT. Perhaps a fix will come out!