Pushing the write button is not needed.
OpAmp wrote:Ok...
I just had a look at the manual. The procedure for dumping is a bit different than you describe it. You say "hitting write".
Apparently when "Midi Dump All - ok?" appears, you need to use the arrow right key to move the cursor to 'ok?' and then hit the +/yes key. Hopefully this resolves your problem...
Bye.