Hi yuriyggg, I copied the ttsystem from the attached and overwrite ttsystem file to my tomtom, still says "you cannot use this map on this device: USA_Canada_and_Mexico_P-477". did I done it correctly or do i have to copy both files PNDnavigator and ttsystem to the TT main directory? thanks.
Awesome, big thanks Yuriyggg! now its working...