There was no relationship found between the returned device and the reported incident.A visual inspection of the device found wear marks on the cover.Functional evaluation did not identify any issues.The complaint was not verified and the root cause could not be determined since the reported malfunction could not be duplicated during the functional testing process.Factors, unrelated to the design or manufacture of the device that could have contributed to the complaint event, include an issue with the concomitant devices used with the controller.After the evaluation there was no root cause for the reported issue and the device performed within the expected parameters.There are no indications that would suggest that the device did not meet product specifications upon release into distribution.
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