Is this a Poly-800 Mk II? The original Poly doesn't load or send via SYSEX.
It could also be the first chip, which can fail like this, apparently. It's a $5 part, but if it doesn't work right, the Poly won't retain presets after you turn it off and unplug it from AC.
That's what was wrong with mine, and we found that out after replacing the battery. So, assuming your battery is fresh and is getting power where it needs to, it could be that chip.
Steve
Steve
On Saturday, November 5, 2016, 7:52 AM, gleesonalan@... [korgpolyex] <korgpolyex@yahoogroups.com> wrote:
Just trying to save edited patches. All the other buttons work fine, and I checked the cabling inside, everything seems in order. Only thing I can think of is a battery issue, but if it stores patches I loaded using sysex I think that means the battery is ok?