TomTom GO 730 touch screen not responding.

The touch screen was not responding.This repair guide is valid for other TomTom GPS as well. Ex. GO 530, GO 720, etc.


No response when touching the screen. Can't get passed the start screen.

Remove the 2 small torx screws at the rear of the unit. (green circles) 

Pry the unit open. I used a "sharp" plastic piece (light blue) which does not scratch the unit.

The unit opens like the picture below.

Open the lock (green arrows) keeping the flat cable in place and pull the cable in the direction of the blue arrow. Be careful!

Remove the display assembly from the rest of the unit and pry the black frame away from the assembly.

Remove the rubber seal from the LCD.

Remove the LCD/display from the rear frame and replace it. The LCD for this unit is the same as GO 530, GO 720 and GO 730.

Put the unit together again in reverse order.

Navigon 40 Sat-nav

 Navigon 40 Sat-nav with no sound coming from the speaker.

4 small torx screws keeps the cover in place (yellow circles).

Pry the front and back cover apart, using a "soft" tool. The tool I'm using is made out of plastic.

Lift the plastic "lock" (yellow square) in order to remove the flat display connector.

2 plastic hooks (yellow circles) keep the PCB in place. Push them outwards.
Lift the speaker connector (red circle) and the battery connector (green circle).

2 Phillips screws keeps the speaker in place (yellow circles). 

Remove the speaker.

I used a standard 28 mm, 8 Ohm, 1,5W speaker which I put back in place using some black silicon.
I had to swap the old cable and connector to the new speaker by soldering (green circles).