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Navman F20 GPS Receiver Questions & Answers
I have a navman f20. it has frozen on the main screen
Possable fix ?? surgery mabee nesessary if they the same as a f40 they have a sd memory stick inside they usually lose contact open it up and copy contents to a new sd make sure contacts are clean and seat it in properly wont cost you much to try at least
Charge Socket
Bought a faulty F20 off EBAY with a broken USB socket.
It seems like a common failure mode.
The one I had had sheared directly of the internal board and their was no PCB track left for re soldering.
I eventually managed to repair the unit by buying a new socket and attaching fine wires which were hard wired to other parts of the PCB then using epoxy glue to refasten the socket. I would consider it a difficult and advanced repair. (Its like micro PCB surgery)
Opening the case is relatively easy. Remove the screws and then use something like a blunt table knife to gently slide between the two case halves until they part bit by bit.
Hope this is of some help.
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