While you wait for answers, we may have found some information which could help you.
Success
Message
goodmans gnav12?
Goodmans GNAV10 problem "signal too low. check antenea"?
were can i get my sat nav repaired?
*HELLPPP* my Goodmans GNAV10 is charging, but it won't switch on!!?
Corrupt SD Card, Goodmans GNAV10?
goodmans sat nav?
how can i fix my goodmans gnav10?
How can i fix Goodmans GNAV10?
GOODMANS G NAV10 FAULT?
sat nav goodmans gnav10?
I have a goodmans gnav10?
how can i get my goodmans sat nav repaired?
howtomendit.com for free repair help, information and advice.