Accu-Chek Aviva Manual Del Usuario página 69

2. To enter the set-up mode,
press and hold
about four seconds.
"Set-up" and the hour
flash on the display.
3. Press and release
for repeatedly until you reach
the display with "OFF"
and the flashing "set-up"
and .
4. Press and release
to switch between
"On" and "OFF." Press
and release to set your
choice.
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