Article ID : 00273581 / Last Modified : 17/12/2021

The headphone volume cannot be adjusted. (WF-SP900)

    Follow these steps to troubleshoot this issue:

    1. Use the tap sensor to adjust the volume.

      You can adjust the volume using the tap sensor:

      • To increase the volume: Tap the sensor on the right unit twice quickly.
      • To decrease the volume: Tap the sensor on the left unit twice quickly.
      • You can increase or decrease volume continuously if you continue to tap the sensor mor than twice quickly.

      Note: The tap sensors can be locked to prevent unintentional volume operations.
      To lock or reactivate the volume operations with the tap sensors, hold down the button on the right unit for about 2 seconds. If you hear the voice guidance Tap function OFF, the tap sensor will be reactivated.

      The volume can be adjusted
      The tap sensor operations have resolved the issue.
      The volume cannot be adjusted
      Go to the next troubleshooting step.
    2. Use the Sony | Headphones Connect app to adjust the volume.
      To adjust the volume using the Sony | Headphones Connect app, move the slide bar next to the speaker icon in the Status tab.

      The volume can be adjusted
      You can use the Sony | Headphones Connect app to adjust the volume.
      The volume cannot be adjusted
      Go to the next troubleshooting step.
    3. Adjust the volume on the connected device.
      For details on how to adjust the volume on the connected device, refer to the device manual or support site.

      Note: Depending on the connected device, the volume may not sync with the headphones. If you cannot get the desired volume by adjusting the headphones or device volume only, adjust the volume on both the headphones and the connected device.

      The volume can be adjusted
      You may need to adjust the volume on the device in some situations.
      The volume cannot be adjusted
      Go to the next troubleshooting step.
    4. If the app has the volume settings, try adjusting the volume using those settings.

      The volume can be adjusted
      The issue may have been caused by the app settings.
      The volume cannot be adjusted
      Go to the next troubleshooting step.
    5. Restart the headphones.
      Visit the Help Guide to restart the headphones.

      The volume can be adjusted
      The issue may have been caused by a temporary malfunction.
      The volume cannot be adjusted
      Go to the next troubleshooting step.
    6. Initialize the headphones.

      Note: All the data (music files, pre-installed data, etc.) saved to the main memory of the player will be erased. Before initializing, backup any important data.

      Visit the Help Guide to initialize the headphones.

      The volume can be adjusted
      The issue may have been caused by a temporary malfunction.
      The volume cannot be adjusted
      The headphones may be malfunctioning, and service may be required.

    Go to the Headphones Troubleshooting Guide