I have just purchased a F20 Navman and upon turning it on a message
"F20 Error Unable to detect internal memory. Please contact Navman Technical Support". Does anyone have any suggestions. Have tried to contact Technical Support and to this stage - no answer from them.
Mine did the same thing. I panicked when the display mapping started behaving strange showing the wrong map all of a sudden followed by your same message on screen, decided to reboot and it came back
Don't bother with Navman Customer (no-)support. Take it back to the ppl you gave your money to. They're not just there to sell the GPS, but to fix any problems with it. Tell them to replace it and send it back to THEIR supplier.