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When unit is turned the screen says "F20 failure return to dealer" and the speakers buzz like back feed, I have tried using the reset button and it just switches the unit off. Does anybody have any answers or is the unit knackered ?
Tags: f20, Failure, navman, screen
Report (0) (0) | 12 years, 7 month(s) ago
Latest activity: 14 years, 5 month(s) ago. This question has 1 answers.