Mackie ShowBox Overview: Firmware Update Tutorial 

Mainly to do with the SD card and apparantly you can now format it in the speaker, but no instructions or anything on how to do this!

this is common knowledge, not showbox specific, its just has to be i believe FAT32, slap that joker in any computer in windows you can do it from file explorer by right clicking on the drive, in mac you have to do it from disk management.

hold down the SD record button until an option shows asking to format, select yes/no and then push in the button once you've selected yes