Accu-Chek Aviva Owner's Booklet page 55

Note:
You can press and hold
decrease increase
5. Repeat steps 3 and 4 to set the minutes,
am/pm, month, day, and year. The flashing
field is the one you are changing.
Chapter 4: Meter Memory, Setup, and Downloading
or down to scroll faster.
6. If you want to set up more options, press and
release
53
. If you want to exit, press and hold
until you see the flashing test strip symbol.