hope this helps i did work for me and i dont even know if it sorted it out on a 740 live.
i tryed everyting and a do mean every thing even with tomtom support over months.
the sim wonld not even give numbers up . it all started when i paid for a new year live. to fix this .this what happend .
i let i go flat on the battery and i do mean flat over a weekend i dont know why it did not turn it self of but it did not .
monday morning i put it on computer as it was flat.
went on opperate my tomtom on computer
i put my email plus pass word and was using live on computer as i had been doing in past when i removed tomtom all worked live works well and no problems o joy i hope this helps but remember that battery was flat .
good luck
i tryed everyting and a do mean every thing even with tomtom support over months.
the sim wonld not even give numbers up . it all started when i paid for a new year live. to fix this .this what happend .
i let i go flat on the battery and i do mean flat over a weekend i dont know why it did not turn it self of but it did not .
monday morning i put it on computer as it was flat.
went on opperate my tomtom on computer
i put my email plus pass word and was using live on computer as i had been doing in past when i removed tomtom all worked live works well and no problems o joy i hope this helps but remember that battery was flat .
good luck