The Avonic Mass Update tool is a Windows based program to update multiple Avonic cameras of the same model with new firmware.
The program works by uploading a *.csv file containing a list of camera IP addresses.
Download the installation program
The installation download can be found on this link
Run the installer CameraUpdateTool.Setup
A security pop up might show, select 'run anyway'
Run the program
Open the program
The opened window will look like this, select the ethernet adapter that needs to be used. 
Upload a CSV file with the list of IP addresses
(keep in mind that you can only update one camera model at once, e.g. CM93-IP-W). The first cell A1 must containt IP Address as content.
The program will import the CSV and display the status of the IP addresses listed in it.
Select the firmware file you want to flash and press 'Update All'
