How to mend Navman F 20

Navman S80 won't charge in car?

how do i open?

navman won't power on ?

Replace the battery on Navman S50?

My Navman S30 3D is locked on the first screen with the lady hanging out th?

Navman repairs?

Cant charge navman?

Navman s100 frozen at start up screen?

Navman F20?

My Navman iCN 610 won't work with the 12v adaptor but will with the mains?

My navman 250 screen is cracked. Can u repair it?

replace glass screen?

reset button?

navman has stopped showing maps ?

navman s50?

how do I open the case on my navman F20?

How to navigate without buying maps?

my navman s30 ?

Navman S100 Software problem?

how do you open up a navman s200?

no power to sat nav?

How to change battery?

navman screen?

how do I replace the battery on my navmanf20 ?

how can i fix my navman 685?

The green light on the plug doesnt light up when i plug in my Navman F20?

how can i fix navman charger point ?

navman s100?

Navman 450 problem?

navman goes in to down load mode when plugged in to car charger?