Upon receipt at our post market quality assurance laboratory, visual inspection noted no irregularities.A review of the device noted corrupted dates and counts in the counters were corrupt.The patient log format was invalid and because of that battery, lead impedances and various reports could not be calculated.A full energy charge was commanded.The device charged completely and normally with no popping sounds or any other sounds heard from the device.High power visual inspection of the high voltage capacitor solder connections and battery solder connections were confirmed all intact.Analysis confirmed the memory corruption but could not identify a root cause.
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