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  Thursday, 02 March 2017
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Hello. I am trying to "Factory Restore" a MIDI guitar processor from the 80s called a Roland GP-8 with a .mid file. I am doing everything the manual says to do, and I have done that with two separate GP-8s but nothing happens. I have used software on both Mac and PC, but I am getting nothing. The cable lights up when the data is transferred, but the processor doesn't do what it's supposed to. I am at the end of my rope! Thanks.
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I did not find anything about "Factory Restore" in the manual.

What exactly are you trying to send to it, and what do you expect to happen?
4 years ago
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#679
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You are correct. The only way to factory restore it is to run a ".mid factory restore" file right into it. Here is more info on that: http://www.axecentral.com/roland-gp-8-restore-factory-presets-10040410.html

The MIDI in does work correctly on my unit as I have managed to get a footswitch to control it. I am doing something wrong with the software and I don't know what. Here is another example of something like this, only with hardware: https://www.youtube.com/watch?v=ak9kjaQFEYM Thanks.
4 years ago
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#681
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Alright...can't get what I need here. On to the next site!
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That .mid file looks correct.

Does "nothing happens" mean that the display does not even show "Ld"?

Does a bulk dump (GP-8 to PC) work? Does that result in the same amount of data as in your .mid file?
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