format sd card as fat 32
MacBook Pro (15-inch, 2017), macOS High Sierra (10.13.4)
Unlike in Windows, you can’t manually choose FAT16 or 32. The OS decides which to use depending on the size of the drive. The smaller it is, the more likely it will format as FAT16.
If you have Windows installed on a Boot Camp partition, or in a VM, you’ll be able to format it as FAT32. Otherwise, you’ll have to find a friend or someone with a Windows computer who can format it for you.
format sd card as fat 32