I glad to hear the Ketron Turkey will stand behind their product. that's great news, good luck and for the next time maybe it's better to wait and seek advise before venturing off on a self repair. I also learned the hard way on a Korg ix300. I kicked the power cord and while is was performing a update. It ended up turning off and when it turned on again, I tried redoing the update, I burned the mother board. I have to say though, I send it to Korg USA and they were able to repair it free of charge after owning it for a few years.