What does "cactus-hid.dll" missing means during firmware update?

What you may have experienced is that the firmware update process does not start after clicking the UPDATE button. When this occurs you will see a message on the STATUS bar telling you that "cactus-hid.dll" is missing.

This DLL file is originally included with your download, however your computer's anti-virus program may recognized it as a threat to the system because of its relatively low reputation (number uses) and have deleted on your behalf.

You can undo this by going into your anti-virus program, select the tasks it processed and revert it to original setting. The file will then reappear in the installation folder.

If you need further assistance please do not hesitate to contact us.

Thank you.
Antonio Lao
Brand Manager

To help us better help you, always state the exact firmware version installed on your Cactus device(s), such as: "1.1.013", "FUJ.1.002", "NIK.A.001", "v.103".

Nikon D750 users please read this thread: 

Fujifilm EF-X500 users please read this thread:

Feel free to suggest an improvement or share product ideas. Contact us directly at info@cactus-image.com.  At Cactus, we listen. 
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