Unfortunately we can’t update the Grundig navigation systems that are not suitable
for this firmware update. Irregularities that could occur with these systems by WNRO
can unfortunately not be solved.
Should your navigation system due to the WNRO not be functioning properly
anymore, and your Grundig navigation system is still under warranty (2 years + proof
of purchase), please return to the store of your purchase.
We apologize for this inconvenience.
PAY ATTENTION! THE PROCEDURE CAN ONLY BE PERFORMED WITH A WINDOWS
COMPUTER. FOR A CORRECT EXECUTION, A MICRO SD CARD WITH A CAPACITY
OF 8 GB OR LESS SHALL BE REQUIRED.
PROCEDURE FOR PERFORMING THE FIRMWARE UPDATE:
1. Create a folder on the desktop of your computer and name it "Grundig firmware".
2. Click on this download link:
The firmware is now being downloaded.
3. Unpack the compressed folder, and put all files in the "Grundig firmware" folder.
The following files are in the "Grundig firmware" folder:
4. Format a micro SD card (8GB or less), control this is completely empty:
