maniac 404 slot

Which doesn't help me because mine still doesn't read them. It also doesn't start when one is in the slot. And for the app - which unfortunately can't backup complete projects - I need firmware version 3.x. I can only get this onto the SP-404 via SD card, as I still have version 2.0. Everything works fine until the 404 accesses the SD card reader. warkop88 slot