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Why is Garmin Express not detecting the sd card in my Etrex 32X

Just bought my Garmin Etrex 32X and was trying to do the update for maps through Garmin Express but it is not detecting the microSD Card.  It wont allow me to continue with the update

  • Perhaps the card is formatted with an incorrect filesystem. I believe (although I might be mistaken) the etrex 32 supports FAT32 filesystems only, and some newer cards come in exFAT. Recently, I had that issue with a Garmin Dash Cam. The cam refused to operate until I reformatted the card into FAT32.

  • Additionally, IIRC, when the SD card is larger than 32GB, using Windows to do the formatting will result in a max formatted size of 32GB.  To make the full amount of the card available you must use a third party utility to do the formatting.  I used AOMEI Partition Assistant to FAT32 format a 64GB card for use in my ZumoXT.

  • What map are you trying to update?