20 Most Recent Navigon PNA Transonic 7000T Car GPS Receiver Questions & Answers

This is a sealer unit, battery is hardwired in.

Sounds like the sd card is beginning to give you a problem, if you can find another sd card or just buy one, (they are less then 20 bucks now) copy the software from the original sd card and put it onto the new card. This should clear up the problem since it sounds like the cards lock is worn down to much for the sensor to feel it.

Remove the 4 screws in the back of the unit. With a jeweler's screw driver carefully pry open the unit enough to get the screwdriver inbetween the front and back panels. Begin to slide the screwdriver down between the two panels causing enough seperation to begin pulling the pieces part. The two pieces snap together so use caution in order not to cause damage preventing reclosing the unit.