Vintage Synth Repair

Hi folks,

I was recently given an old Korg M1. It had a dead battery and a few other issues, all now sorted.

I managed to download some .SYX files of the factory Progammes, Combis, Sequencer etc...

I have managed to get the Programmes loaded (using "DumpIt" on my old Atari ST) but the problem is that the Combi's will not load for some reason...!

Could there be any reason why  Progs load but Combi's don't?  Am I missing something?

Cheers,
TOM