Issues with Dongle not being seen on Mac OS X

Please update cardPresso to the latest public 1.7.X version, available in our website.

Then, go to your system's Privacy & Security options, click on Full Disk Access and enable the cardPresso checkbox in the list.

After that, restart the computer, in order to load the applied changes.

Last but not least, refer to the attached technote that explains how to correctly format a cardPresso dongle and recover its license on macOS systems.

You can also refer to the respective documentation on how to prevent the cardPresso USB from going into a sleep mode and losing its license temporarily.