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Interfit S1A Firmware Update

Interfit S1 Firmware

Version 2.7

What's new in this version?

  •  - Added Compatibility for Canon EOS-Series Mirrorless Cameras
  • -  Added Compatibility for Nikon Z-Series Mirrorless Cameras
  •  - Added Compatibility for Sony Mirrorless Cameras
PC
MAC

Version 2.6 (Backdate)

UNIVERSAL MANUAL REMOTE BACKDATE 2.6

If you have purchased the S1a with the Universal Manual Remote (INTR1B) you will need to backdate your S1 head to 2.6 for your remote to work. This is because we now ship the flash heads with the latest software 2.7 which is incompatible with the Manual Remotes.

PC (2.6)
MAC (2.6)
*NOTE: firmware must be updated on lights AND remotes for proper functionality*

Installation Instructions

Make sure to read all directions when installing your firmware to avoid any possible damage to your device!

Instructions for Windows

  1. Click the download button above with the Windows logo. The file will automatically download into your downloads folder when you press "save."
  2. In your File Explorer window, within the “Downloads” folder, locate the file.
  3. Double-click the .exe file to open the application.Follow the instructions on the firmware update window for upgrading your device.
    • Note: Your computer security preferences may require you to confirm that you wish to open the files because your computer does not recognize the developer. If this happens, a pop-up window will open. Select “More Options”. You will be notified that the firmware file does not come from a trusted source. Click on “Run Anyway”.
  4. Follow the instructions on the firmware update window for upgrading your device

Instructions for Mac

  1. Click the download button above with the Apple logo. The file will automatically download into your downloads folder when you press "save."
  2. In your “Finder” window, locate the file and double-click to unzip the file.
  3. Double-click the unzipped file to open the application.Follow the instructions on the firmware update window for upgrading your device.
    • Note: Your computer security preferences may require you to confirm that you wish to open the files because Apple does not recognize the developer. If this happens, open System Preferences and double-click on Security & Privacy. You will be notified at the bottom of the window that the firmware file does not come from a trusted source. Click on “Open Anyway”.
  4. Follow the instructions on the firmware update window for upgrading your device

Where's My USB Port?

Remove the selector knob from the back panel of your flash unit simply by pulling it off. Don't worry, it won't break!

Video Instructions

FAQ's

How do I check which version of firmware my S1a or remote is already using?

  • S1a – To see which version of firmware your S1a flash head is using: power the light off, press and hold the “test” button, and power the light back on. A number (1.5, 2.0, etc.) will appear on the LCD readout that corresponds to the firmware version.
  • Remote – To see which version of firmware your remote is using: power the remote on and press and hold the “mode” button. A letter and number (b 01, b 02) will appear on the LCD readout that corresponds to the firmware version.

I downloaded the firmware files but I can’t open them on my computer.

  • Your computer may consider the software to be a threat, as it is coming from an “unknown developer”. You may have to manually override the security settings on your computer. Please see the Download Instructions above for more details.

When I plug my device to the computer, I get an error message saying “the update software is not fit for this device”.

  • Each firmware file is specific to the device. This is a failsafe to ensure users do not inadvertently corrupt their device. If you see this message, double-check to make sure you downloaded the correct file. If you still get the error message, contact Interfit Support.
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