MIDI data error !

[cyclopticantihero]

i am trying to upload os 1.5 to my sp808 using updSMF utility but getting above error message on 808, anybody got any ideas about this one

[cartesia]

try slowing down the speed at which u send it if ur using a sysex librarian/transmission type program..

also check that there are no midi filters etc

[cyclopticantihero]

have tried again a couple of times but with no success