I carefully followed the steps in djc151084's thread "How to update a 32mb Widescreen TomTom Device" and have ended up with the message "Problem with map. You cannot use this map on this device: Europe-226".
My setup:
I've a TT ONE XL (model 4S00.000R) running very well under BL 5.5128 with (on a 4GB SD card) NC 8.414 and a Western Europe 835.2419 map. It's become often out-of-date and I wish to install (on another ...