I have a TT One XL running Navcore 9.205. I have not updated the map in a year, but last time I did I used the Backup version located in the zip file in my TT Home documents folder (this one is from a TT XL330S) and it worked succesfully using Fast Activate. For some reason , now it no longer works. Here is what I did.....
From the root I deleted all files in the map folder
I extracted all files from the ZIP in the backup folder of my pc to the map folder on the device.
I copied the USA_and_Canada-624Meta.dct file to the map directory on the device.
I ran FAST ACTIVATE
Disconnect USB cable from device and rebooted
note: I even tried deleting currentmapdata and currentlocationdata
Get "Problem with Map You cannot use this map on this device: USA_and_Canada-624"
Any ideas ?