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FJ Triggers Not Turning On / Not ChargingUpdated a month ago

When working with the FJ Wireless system, ensuring proper functionality and connectivity is essential for a seamless shooting experience. This guide will walk you through troubleshooting steps with your FJ-X2 M, FJ-X3 M, and FJ-X3 S.

By following these steps, you can quickly identify and resolve any challenges, helping you maintain consistent performance across your FJ Wireless Strobes. This comprehensive guide is designed to educate and assist you with your FJ Wireless gear. 

Topics on this page:

  1. Check the Power Source
  2. Check the Batteries
  3. Reinstall Firmware
  4. Install a New Battery

1. Check the Power Source

  • Only use the USB -A to USB-C cable included with your trigger and a 5v power source when charging.
  • Try a different outlet or power source to confirm the power supply is not the issue.

2. Check the Batteries

  • LED Light Indicators
    • Blinking Red: Charging
    • Blinking Green: Fully Charged
  • FJ-X2m:
    • Estimated charging time is 2 hours
  • FJ-X3:
    • Estimated charging time is 3 hours
    • Check Battery position
      • If you have ever removed and reinstalled the battery, double-check the contact points on the battery are matching with the contact points on the trigger. The Westcott Logo on the battery should be facing away from you, into the trigger, when installed.

NOTE: During cold weather usage, the FJ-X3 battery charge may deplete quicker or show inaccurate


3. Reinstall Firmware

  • In some cases, firmware can be uploaded to your unit with an error causing odd issues like it appearing to be fully charged but not turning on.
    1. Delete any downloaded firmware on your computer
    2. restart your computer 
    3. redownload the current firmware version and follow firmware installations as instructed.
    4. Eject the connected unit before unplugging it.
    5. Power on the unit.

4. Install a New Battery

Consider a backup battery for your FJ-X3 M if you haven't already for moments where the supplied battery doesn't take a charge.

Install a new battery to diagnose if the battery is at fault or not. 

Removing & Replacing the Battery

  1. Turn off the FJ-X3.
  2. Turn over with the battery cover facing upwards.
  3. Apply slight pressure to the textured area and slide the battery cover in the direction of the arrow to remove the battery cover.
  4. Remove the battery by inserting your finger into the half-circle cutout above the battery and lean the battery forward. Or, turn the FJ-X3 over and gently shake the unit over your hand until the battery dislodges from the battery bay.
  5. Reinsert a battery by aligning the 3 contact points on the battery with those inside the battery bay. Angle the battery and gently insert into the battery bay. 
    (NOTE: Never force the battery into place.]
  6. Ensure that the battery is seated flush by gently pressing it into place.
  7. Reinstall the battery cover by laying the cover flat and covering ¾ of the battery. Use the textured area to slide the battery cover toward the base of the FJ-X3 until it clicks into place.

Contact Westcott Support if the options above do not solve your issue.

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