Navman iCN 520 GPS Receiver "nokia wont charge" Questions

...wont have to solder anything to replace the battery, its just a 3.7v battery. a nokia phone battery could even be used. just take out all the screws on the back, pull of the shell and the battery is ...

...Nokia N95 loaded with the same places just in case. Had the same problem, I called tech support and all I had to do was connect the Navman to my computer, open my documents on the device and delete ...