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Step 2: The beep will sound again. The Apply Blood symbol and the
code number (F-2, F-3, or F-4) will alternate on the screen.
Verify that
the code number on the screen matches the code number printed
on the bottle. If the code number does not match, the meter may
give a false reading. If code does not match, use a new strip. If code
still does not match, use a new bottle of test strips or call Customer
Service at 800.566.8558 (24 hours a day, 7 days a week, USA and
Canada only). Verify that the date and time appear on the screen
and are correct. If date and time are not correct, reset them (see
Meter Set-up, page 13).