
Originally Posted by
ezfishn
Nav data is stored in the unit's memory. It can only get on the SD card if you export it from the NAV menu. But corrupt data on SD cards and in unit's memory can cause problems. So, would suggest;
1) Export Nav Data, 2) remove SD card, 3) Reformat NAV Directory, 4) Reboot (without any cards). If that works, then should verify NAV data in HB PC. Just trying to offer some more suggestions before paying for a repair...LOL