Yesterday I got my brand new Rider 550. Initially I connected the device to the WiFi, but that didn't seem to be stable enough to do any updates. However, every time the Rider restarted, it tried to continue the update. I thought it would be best to connect it via USB instead, so I aborted the update. It seems this was a very bad idea. Now all I get is a message "No map available" and I can't do much else. I've read all the support articles related to this, but none seem to help in my case. Usually they point out that you should get the option to download the map again, but that's is not the case for me. In MyDrive Connect I also don't get many options.
When I click on "add a map" on the Rider, I get a message "Nothing to see? You can buy more maps on tomtom.com/maps."