How to format a SD card under El Capitan Was this article helpful? 3 out of 4 found this helpful Follow Configuration issues might require you to format the SD card provided by Devialet. In order to do so under Mac OS El Capitan, please select "Format as MS-DOS (FAT) " and Scheme as Master Boot Record. Top Have more questions? Submit a request Was this article helpful? 3 out of 4 found this helpful Follow 0 Comments Article is closed for comments.