: Indicates the card is unreadable, corrupted, or the wrong model for the unit .
is a frequent provider for these specialty map cards and unlock codes . clarion-sd-card
and NX series units are common models requiring these cards for unlocking and language translation . Troubleshooting : Indicates the card is unreadable, corrupted, or
: Remove the card and gently clean the metal contacts with a dry cloth before re-inserting . : Indicates the card is unreadable
NavigationDisk - Japanese Car Radio unlock solution - Facebook