1.No nonconformance was found in the document (qa-w-21-03) after okb reviewed device history record (dhf) of the suspected meter (serial#: (b).(4) 2.The meter was shipped to pdc on 2019-12-17.Because the suspected meter was not returned to okb, the retained one (serial#: ok-a-qc-01) was used to re-examine its setting and all functions, and no malfunction occurred.Also, it was re-tested by any retained strips (lot#: d210611b-1) from okb's warehouse and any valid control solutions (batch# of gcs level low: 0ah1a03 and exp.By 2022-12-31; batch # of gcs level high: 0ah3a17 and exp.By 2022-12-31).Gcs test results (level low: 49/48; level high: 286/288) met the acceptance criteria (level low: 30~75; level high: 230~340).3.The root cause of the complaint was unable to be verified without the suspected meter and more critical information.Therefore, the complaint has to be closed out if no further action or information from the user.
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