After you have ordered a license renewal for your custo screen check you have to upload this license to the CodeMeter delivered with you custo screen check.
You can download the license update file from the custo med Service Provider website.
To find the file, that is needed to upgrade the CodeMeter for the custo screen check, you have to go to your Service Provider login
Choose "License diag 4.x" and enter the license number of your custo screen check software into the field. When the license has been activated a zip file will be shown and can be downloaded.
In the following link you find how to update the CodeMeter with the downloaded file(s)