Hello, Paolo! We are so sorry about the issue. We are under development of a new update of the Magerit Updater to make it compatible with all Mac computers.
Here is the link to the Legacy Updater, available for Windows and Mac. In the instructions .txt file you will find all the steps to download the firmware files (.bin) and how to update your module.
https://www.magerit.es/download/Magerit_Updater_Legacy.zip
Best regards, David.
