Well, some people have problems to obtain a mSD card of <=2GB.. JLog2 supports the filesystem FAT16 but not FAT32. FAT32 is needed if the card’s capacity exceeds 2GB.
But there is a way to use cards of >2GB: Create a primary FAT16 partition of 2GB on such a mSD of >2GB.
By what means? –> e.g. Minitool Partition Wizard
Wait a moment.. Now, 1.5 yrs after I wrote that, it looks like the bootlader has a problem with the MBR in such a primary partition..