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The word "verified" in the message is crucial. It indicates that the software attempted to verify the dongle but failed the cryptographic handshake.
The specific callout for a "new black embroidery studio USB dongle" means your software version explicitly requires the newer hardware. If you are attempting to run a modern version of EmbroideryStudio using an older red dongle, or if you are using an aftermarket emulator, the software will reject it and display this exact verification prompt. Step-by-Step Troubleshooting Guide
When something goes wrong with the dongle verification process, you may see any of the following error messages:
: Try a different USB port or restart the application. Drivers usually install automatically, but a reboot can resolve recognition failures.