Article ID : 00277282 / Last Modified : 06/12/2022Print

LinkBuds (WF-L900) aren't charging

    Follow these steps if your headphones aren't charging:

    1. Leave the charging case in a place with an ambient temperature between 15 °C and 35 °C (59 °F - 95 °F), and try charging again.
      The issue is resolved
      The issue may have been caused by the ambient temperature being too high or too low.
      The issue is not resolved
      Go to step 2.
    2. Using the supplied USB Type-C cable, connect the charging case to a USB AC adaptor or computer. Try fully charging the headphones.
      Headphones are now charging normally
      Use the USB Type-C cable supplied with the product. Charging may not be possible with a commercially-available cable or a USB hub.
      Headphones aren't charging
      Disconnect the USB Type-C cable from the charging case, and go to step 3.
    3. Clean the charging port of the headphones, place the headphones in the charging case, and check the indicator of the charging case.
      Note: For details on cleaning the headphones refer to Headphone cleaning and maintenance.
      The indicator lights up in green for about 3 seconds

      The headphones are fully charged. Put the headphones on, connect them to another device through Bluetooth (e.g. your smartphone), and check if you can hear the sound from the connected device. If you can't hear any sound, refer to I can hear no sound from one or both earbuds when playing music or during phone calls.
      The indicator lights up in orange for about 3 seconds

      The remaining battery is low. Charge the headphones for about 30 minutes using the supplied USB Type-C cable, and go to step 4.
      The indicator flashes twice in orange

      Abnormal temperature or some other issue prevented the headphones from charging. Go to step 5.
      The indicator does not light up

      Go to step 6.
    4. Once charging is complete, connect the headphones to the device via Bluetooth, and check if the headphones can be operated normally.
      The headphones can be operated normally
      The charging port of the charging case may have been dirty.
      Note: Regular cleaning is recommended to prevent charging issues.
      The headphones cannot be operated normally
      Go to step 9.
    5. Set the headphones into the charging case, connect the charging case using the supplied USB Type-C cable, and then check the indicator of the charging case again.
      The indicator lights up in orange when charging starts

      The headphones are in the process of charging. Wait until the headphones are fully charged.
      The indicator flashes twice in orange

      Abnormal temperature or some other issue prevented charging. Go to step 9.
      The indicator flashes 3 times in orange

      Abnormal temperature or some other issue prevented the headphones from charging. Go to step 9.
      The indicators do not light up

      Go to step 6.
    6. Try the following procedure, and check if you can charge the headphones.
      1. Make sure that the ear fitting supporters are properly attached to the headphones.
        Note: If the ear fitting supporters are not properly attached, the charging case and headphones cannot contact one another, and the charging may fail. Align the protruding part of the headphones with the cutout on the fitting supporter (A). Make sure to insert the fitting supporter completely.
        image attaching the ear fitting supporter
      2. Set the headphones into the charging case, and start charging.
        Note: Make sure that the left and right headset units are inserted into the correct sides.
      3. Remove the headphones from the charging case, and check if the indicator lights up in orange for about 3 seconds.
      Headphones are now charging normally
      The issue may have been caused by the way the ear fitting supporters were attached or placed into the charging case.
      Headphones aren't charging
      Go to step 7.
    7. Check if you can charge a different device with the same AC adapter or USB port.
      Use the same AC adapter or the USB port on the computer to charge a different mobile device or product.
      The mobile device or product can be charged
      Go to step 8.
      The mobile device or product cannot be charged
      The AC adapter or USB port may not be working. Please contact the manufacturer.
    8. Clean the charging port of the charging case, and check if you can charge the headphones.

      If any dust or dirt is in or around the charging port, the headphones may not charge normally. Remove any dust or dirt with a soft, dry cloth before charging.

      Headphones are now charging normally
      The charging port of the charging case may have been dirty.
      Note: Regular cleaning is recommended to prevent issues with charging.
      Headphones aren't charging
      The headphones may be malfunctioning, and service may be required. Go to the next step (9).
    9. Reset the headphones.

      Visit the Help Guide or view the video on How to reset the LinkBuds:

      The issue is resolved
      The issue may have been caused by a temporary malfunction of the headphones.
      The issue is not resolved
      Go to the next troubleshooting step (10).
    10. Initialise the headphones.
      Note: Initialisation returns the headphones to the factory settings, and all Bluetooth pairing information is deleted.

      Visit the Help Guide or view the video on How to initialise the LinkBuds:

      The issue is resolved
      The issue may have been caused by a temporary malfunction of the headphones.
      The issue is not resolved
      The headphones may be malfunctioning, and service may be required.