The reported event of backup operation was confirmed.Analysis of device image revealed the device went into backup mode due to a power on reset.The device was successfully restored from backup mode in the field.Functional testing was performed and the telemetry, impedance, sensing, pacing and high voltage (hv) output functions of the device were observed to be normal.The backup operation could not be reproduced.Additionally, a software investigation was performed and the root cause of the power on reset could not be determined.
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