Firmware updates are handled through the MiniFuse Control Center application.
The application will automatically check for firmware updates on launch and alert you whenever an update is available.
To check manually, click the Gear buton in the upper right corner and it will bring up the firmware update window.

If a firmware update is available, the Upgrade to Latest button will be active.
Click it to download and install the latest upgrade.
In some cases, you could also need to use the Upgrade from File button.
It allows you to update your MiniFuse with the firmware of your choice, instead of simply updating it to the latest one.
Note
You can download the different firmware versions of your MiniFuse from the following page: MiniFuse - Resources.
You can upgrade from file in three main scenarios:
- Downgrade to a previous firmware version
- Update manually to the latest version of the firmware
- Update your MiniFuse firmware from an offline computer
If you update your MiniFuse firmware from a computer that's not connected to the internet, you will need to download the firmware update file on a different computer, and transfer it onto the target computer using an external drive.
You can then use the Upgrade from File option to select the firmware file.
In case you would have some difficulties to apply firmware updates, make sure to attempt the following procedure.
1) First, force the unit into BootLoader mode with the steps below depending on your interface:
MiniFuse 1/2:
-Power the interface off by unplugging USB cable
-Hold "Direct monitor" + "48V" buttons while powering it ON again by plugging USB cable
MiniFuse 4:
-Power the interface off with the "A" button
-Hold "Instrument 2" + "48V" buttons while powering it ON again with the "A" button
2) Now, open MiniFuse Control Center which should display the following pop-up:
3) Click on "Update" button (Then make sure not to interrupt the process until Success is displayed on the screen as no feedback is being given during the update).