11 May 2024, 05:21

I have downloaded the full maps for France and the route for off-line services.

Phone: Samsung S10 in offline mode.

I created a route which starts on the motorway just outside Calais, to go to St Omer. When I left home in London, I started the route, asking the app to take me through the start point on the French motorway and on to St Omer. This runs perfectly when I leave home and enter the train in the UK. When on the train, I leave the phone and the app running but, obviously it loses its GPS signal for the duration of the 40 minutes of the tunnel crossing.

When the train arrives in France and before the doors open to let vehicles off, I can see the French map and the position cursor. But, as soon as I ride off the train, the map vanishes (the screen of the phone goes grey) but the route is still running, as I can hear the voice instructions. This has now happened twice, identically.

It is as if the map starts OK in England but suddenly realises it is in France and it vanishes.

If I then stop my bike and restart the app / route again, it performs perfectly.

What am I doing wrong?

What causes the screen to go grey when I ride off the train in France?

Thanks.