How do I reset my Accu-Chek Aviva meter after I change the battery?

To reset your Accu-Chek Aviva meter after changing the battery, first, ensure that the new battery is installed correctly. Then, turn on the meter, and if it doesn’t automatically reset, you can press and hold the “M” button until the display shows the setup screen. Follow any prompts to complete the reset process, and make sure to check the date and time settings. If needed, refer to the user manual for specific instructions related to your model.