: Format a USB drive or microSD card (under 32GB) to FAT32 .
Absolutely not. Any bump or power interruption will brick the system. Perform the update with the car parked. Blaupunkt San Marino 330 Software Update Download
Now that you've downloaded the update file, follow these steps to install it on your Blaupunkt San Marino 330: : Format a USB drive or microSD card (under 32GB) to FAT32