Have you tried a full reset ?
when a full reset won't work than do not try to fix it your self inside is modern cmos technology that can easily die when you touch it with anything , and i do not know how old it is , but when older than 2 years it id cheaper to buy a new one than let a handyman or tomtom fix it
guest
May 2009
howtomendit.com for free repair help, information and advice.