Installing Cactus Firmware Updater & Updating Cactus devices on Windows 10 PC

Before installing the Updater and or connecting your Cactus device, you will need to disable the Signed Driver Enforcement (also known as digital signature) on your Windows 10. 

Follow the steps below:
  1. Press Windows key on your keyboard .
  2. Go to Setting >> Updater & Security >> Recovery >> Advanced Startup (computer will restart here)
  3. After restarting Windows, click Troubleshoot.
  4. Click Advanced Options.
  5. Click Windows Startup Settings.
  6. Click Restart.
  7. After restarting your computer a second time, choose Disable Driver Signature Enforcement from the list by typing the number 7 on your keyboard (your computer will restart automatically).
  8. After restarting, you will be able to install the Cactus Firmware Updater normally. During installation Windows will display a warning message, click Install this driver software anyway.

The next time you restart your computer, the Driver Signature Enforcement will be in effect again. You will have to repeat this process for updating any new Cactus devices. If you wish to update devices with the same computer, we recommend installing the drivers for each one before you shut down or restart your computer.
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", "v.103".

Cactus RF60X / RF60 Firmware versions A01 and A02 currently ONLY works with PEN.A.001 and OLY.A.001.  Other "A" version of X-TTL firmware will be released soon. For both Multi-brand HSS and X-TTL firmware versions (FUJ, SIG, SON), install firmware version 103 / 205 on your RF60X / RF60.

Cactus RF60 is now an off-camera TTL flash with firmware version 205 or later!

Metz M400 (for Fujifilm) is now supported on the Cactus V6 II (HSS and TTL).

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  At Cactus, we listen. 
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