Ordinarily, you can use a USB-A to USB-A cable to force a recovery flash. In these new failures, the GXD 8 either does not enumerate as a recovery device, or the flash process fails at 48%.
Close the QSC firmware update utility on your computer, unplug the USB cable, and restart the software. Reconnect and check if the utility now recognizes the amplifier (it may show the serial number instead of the name). Hard Power Reset:
~85% for the new failure type.
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