GTN Loader Cards

[Breezy]

Garmin allows the use of non-Garmin SD cards for loading SW updates to GTN units. A caution is also posted in SB2143 for non-Garmin cards.

Anyone have negative results using non-Garmin cards?

 

[jeffk]

No issues updating GTN-750, GTN-750xi, G3X Touch and G5.

Garmin recommended 32GB maximum size.

I recommend paying a little more to buy a top brand, e.g. SanDisk or Samsung, and buying from a known source, rather than the lowest price. For example, B&H or Amazon (if sold and shipped by Amazon). The goal is to avoid buying counterfeit cards.

 

[Ed_Wischmeyer]

Since the GTNs are certified units, they need certified SD cards. Garmin takes standard cards (don't recall whose) and tests them to certify them. Since we're experimental, we can provide our own cards but, as pointed out previously, get good ones.

 

[sbalmos]

Getting computer-geek for a moment, the 32GB is a hard upper limit on the partition you format the SD card to - the filesystem MUST be FAT32. It's getting pretty hard nowadays to find 32GB SD cards. But you can use larger cards (or the tiny microSD chips with the converter cards), just as long as you create a max 32GB partition on the chip and format it FAT32. If you get larger cards and let them format by default, it will format using exFAT, and will not be recognized by the G3X/GTN/whatever.

No issues updating GTN-750, GTN-750xi, G3X Touch and G5.

Garmin recommended 32GB maximum size.

I recommend paying a little more to buy a top brand, e.g. SanDisk or Samsung, and buying from a known source, rather than the lowest price. For example, B&H or Amazon (if sold and shipped by Amazon). The goal is to avoid buying counterfeit cards.