There are 2 possible causes for this error message:
- The Software version in your head unit is older than the Map version on the SD card/USB drive. If this is your first time inserting the SD card/USB drive, you may ignore the message and click "OK" to continue the update or go to the System Info page and press “Update”.
- The Software version on your SD card/USB driver is not the same version that is on the head unit. If you downloaded the map update, please try to redownload* the correct update using the search by SW ver.
*Please first delete all folders & files from your previous download to avoid any confusion later.
If you continue to receive the Authentication Error message, please contact us via Chat portal or email.