I own a new XTi 2000 and just bought a second XTi 2000 used (has little usage) It was locked and the setting sounds like a transistor radio coming out- no Low end at all. I have been holding the "pres and next" buttons together and it only flashes a type of display underneath the Locked display- will not unlock... anyone have any idea? Is there a complete re-boot to reset the amp to the original factor presets?
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