At this point USB firmware will not help you. You need recovery jigs to be able to bring the machine back to life. Once a firmware update via USB fails, recovery jigs is the only way to bring it back to life and that is hoping that one of the boards isn't dead.
You could bring the machine out of firmware update mode but it will still code if you do. Save yourself the headache and buy some recovery jigs along with the firmware E-Proms.
You could bring the machine out of firmware update mode but it will still code if you do. Save yourself the headache and buy some recovery jigs along with the firmware E-Proms.
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