MyStar Extra - The Meter was Unable to Produce a Reliable Result; The Meter was Unable to Produce a Result or Unusual Test Strip Problems Have Occurred that May be Related to Extreme Conditions

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Error Messages and Troubleshooting
Error 4: The meter was unable to produce a result or unusual test
strip problems have occurred that may be related to extreme
conditions.
[1] This error may be caused by extremely
high glucose. If you are experiencing
symptoms of hyperglycemia, contact your
healtcare professional immediately. If this
error code persists on retesting, consult your
healthcare professional.
[2] Retest where it is closer to a room
temperature of 21°C to 24°C.
Error 5: The meter was unable to produce a reliable result.
[1] This may be caused by a non-blood
sample or a combination of high glucose
and other medical conditions.
[2] If this error code persists on retesting,
call Customer Service at 08000 35 25 25