I bought a 945 a week ago, while there was no problem installing the map update. However, I changed a new one as I found the down button was a bit sticky. After I got the new one and installing the map update and firmware 4.0, it says "there was an error installing the update" for ToPoactive US & Canada 2018.10! When I looked at the Map Configuration of the watch the version of ToPoactive US & Canada is 2018.20.
My questions are:
1. Was is caused by firmware 4.0?
2. Should I change a new watch?
3. Would downgrade to firmware 3.9 solve the problem? If yes, how can I downgrade it?
Thanks in advance for your help.