FreeStyle Libre is compatible with diasend®, however newer FreeStyle Libre devices with serial numbers starting with JK... and JT… belong to a new version of the Libre meter which is not, at the moment, compatible with diasend®. If this is the case for you, and you try to upload data using diasend® Uploader, you will get the error B1.
If you want to be informed once these new versions of Libre become compatible, please let us know by submitting your request here.
In the meantime, you can set up a cloud-to-cloud connection to get your data from the LibreLink app to diasend. You read the instructions below:
How to synchronize FreeStyle LibreLink with diasend®
Or watch the video below: