Goto page |
jandrioli wrote: | ||
It's the partitioning of the SD Card!!! I struggled for days with my Garmin and different SD cards from all brands, qualities, speeds, specs. Finally I found out that SD cards must be very strictly partitioned: you must have only 1 PRIMARY PARTITION on the card. Several tools on windows like Windows' disk management tool and MiniTool's Partition Editor create nested partitions... phones and gps devices can't open those. How I found this out is when I got home and tried to manipulate some map images. Linux saved my day and now I can navigate american maps with a european Nuvi. So the tip here is: try to see if your SD card has been partitioned to have EXTENDED partitions or LOGICAL partitions. IF that's the case you need to delete them, create a primary partition, format it to FAT32, and re-copy your maps. |
jandrioli wrote: |
It's the partitioning of the SD Card!!! I struggled for days with my Garmin and different SD cards from all brands, qualities, speeds, specs. Finally I found out that SD cards must be very strictly partitioned: you must have only 1 PRIMARY PARTITION on the card. Several tools on windows like Windows' disk management tool and MiniTool's Partition Editor create nested partitions... phones and gps devices can't open those. How I found this out is when I got home and tried to manipulate some map images. Linux saved my day and now I can navigate american maps with a european Nuvi. So the tip here is: try to see if your SD card has been partitioned to have EXTENDED partitions or LOGICAL partitions. IF that's the case you need to delete them, create a primary partition, format it to FAT32, and re-copy your maps. |
Zoltan wrote: |
Hi!
The SD card problem could be related to filenames. For example, a 'gmapprom.img' file is only readable on the GPS unit, but if you copy it to the SD card, you have to rename it 'gmapsupp.img', and then the GPS unit can read it. |
Code: |
Format the microSD/SD card to the FAT or FAT32 format. A 2 GB or less card can be formatted in FAT or FAT32. Cards larger than 2 GB should be formatted in FAT32. Cards larger than 32 GB should be formatted in exFAT2. Place the SD card into the SD card slot in the device3 Press the Windows key + E on the keyboard to open Windows Explorer/File Explorer Click This PC (Windows 10 only) Locate the Removable Disk1 icon representing the SD card Right-click on the Removable Disk icon Click on Format Change Allocation unit size to Default allocation size Ensure Quick Format is checked Click Start Mac: Open Spotlight (CMD + SPACE on the keyboard) Type Disk Utility (in Spotlight search box) Press Return on the keyboard Click the parent icon for the SD card in the sidebar on the left (the parent icon is the one that is not indented) Click on the Erase option on the right In the Format drop down menu, select MS-DOS (FAT) In the Scheme drop down menu, select Master Boot Record (Mac OS X 10.11+) In the Name field, type a name/title for the SD card (Do not leave the name as "Untitled") Click Erase These steps will format the microSD/SD card to be readable by the Garmin device. |
|
|
||