I recently acquired a Casio CZ-2000S. I have been trying to upload some patches to it from my computer. I use MIDI-OX and a MIDI-to-USB cable to send midi messages between the CZ and my computer. Notes played on the CZ are shown in the MIDI-OX window, hence I expect the midi connection is ok. However, no sysex data can be received or sent, no bytes are transferred. If I plug in the MIDI-to-USB cable while the CZ is turned on, it shows the following error message:
*MIDI*
DATA ERROR!
When I turn it on after connecting it doesn't show this message. I'm not sure whether this error is related to the problem described above or if the CZ should be turned off when connecting anyway. I would like to be able to exchange sysex files between my CZ and computer. Any help would be much appreciated!