Updating the Firmware

  1. Download latest firmware (.dfu file) from Felix Instruments website:

https://felixinstruments.com/support/F-950/software/

  1. Open the F-950 Firmware Upgrade software on your pc.
  2. With the unit powered off, connect the F-950 to the computer using the mini-USB to USB cable.
  3. Hold the Down Arrow button down on the F-950, then press the Power button, then release both buttons. This puts the F-950 in DFU mode.
  4. On the DFU software, from the drop down menu under “Available DFU Devices”, select “STM Device in DFU Mode”. Note: when connecting device to your computer for the first time, it may take a minute for the device to show up in the drop down menu.
  5. At the bottom of the transfer software screen, click “Choose…”.
  6. A dialogue box labeled open will appear. Navigate to the desktop of your computer and select the new .dfu firmware file to download.
  7. Click “Upgrade”. A dialogue box will appear- click “Yes” to proceed.
  8. The device is now being updated with the newest firmware. The green bar at the bottom of the screen tracks the progress of the upgrade. When the green bar reads “Upgrade successful” the process is complete.
  9. Near the top of the DFU program, click “Leave DFU mode” to return the device to its normal mode of operation.
  10. Power on the F-950. In the lower right hand corner of the device screen, the new version of firmware will appear.

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