Upon receipt, communication could not be established between the device and the programmer because the battery was depleted.Since no communication could be established, the device image and episode data was unable to be retrieved.The device was tested with automatic test equipment (ate) which revealed normal device characteristics.The device¿s implant date is unknown; therefore, the longevity estimation could not be performed.The cause of the battery depletion is undetermined.The reported event of the device in hardware back-up mode was not confirmed in the laboratory.
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