Hello. I've got a problem with my POD HD 500. It's hang up after the flash memory updating. The Monkey get a mistake: (Code 8000900C) MIDI device timed out waiting for a response. Now it shown a "UPDATING FLASH..." on the POD display and nothing happens for a very long time. I've been reset it by holding "<", but it helps nothing. There is a load preset("Acoustic") on display but no one switch is work. What shall I do?