![background image](http://html.mh-extra.com/html/accu-chek/aviva-nano/aviva-nano_reference-manual_455907090.webp)
2. Make sure the release
button is not yellow.
Insert a new drum, blue
ring first, until it clicks
into place.
3. Align the notch on the
cap with the notch on the
device and slide the cap
on until it stops.
4. You are now ready to
use the first lancet. The
lancet counter shows five
white bars, meaning you
have five new lancets
remaining.
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