How can I fix my navman f20?

After using my navman F20 twice it now says that it is unable to detect the internal memory.

How do I fix this
Charlotte T, March 2007


done
Take the navman sticker off the back, take the plastic cover off, take SD card out download all info onto your comp. Delete everything on the SD card.
Now put back into navman download service park 2, put back into comp and upload maps and other info back onto card.

Should work fine now well it did for me!

Carl, November 2009
http://www.fixya.com/support/t1184818-f20_navman_error

jack dingo, August 2009
This is a known motherboard failure which will be repaired free under the 2 year guarantee from Navman.

Nala, February 2008
Is it under warranty? If so i'd take it back to the shop that you purchased it

Halfords worker, April 2007
i got the same problem any one found a solution to your s yet

jason, March 2007
link Click here to see other fixes for Navman.