Skip to main content

Bluetooth connection issue

This section Created by api

  • I've connected my headphones to both my phone and laptop, and am using the headphones for online meetings on my laptop. Why does the phone call audio come from the phone when I receive a call?

    We apologise for any inconvenience caused. Please note the following regarding this behaviour: Some computers or online meeting applications may repeatedly attempt to reclaim the audio channel after it is interrupted by a phone call. This behaviour is related to system or application compatibility.

    To resolve this:
    1. Set the online meeting app to use a non-Bluetooth audio channel where possible.

    2. After ending the phone call, if meeting audio does not resume, manually reselect the Bluetooth AG audio channel in the meeting app. Alternatively, power the headphones off and on to trigger automatic Bluetooth reconnection.

  • Why does the Bluetooth disconnect when I plug in a USB-C audio cable or 3.5mm aux-in cable to my headphones?

    To ensure simple and reliable audio output switching, the headphones automatically disconnect Bluetooth wireless audio once a wired audio connection is detected. This is by design. If you want to use Bluetooth audio, please unplug the wired audio cable.

  • I had CMF Headphone Pro connected to two devices with Dual Connection. Why is it only reconnecting to one device after I've walked away and come back?

    When in Dual Connection and disconnected due to exceeding the connection range, CMF Headphone Pro will only automatically reconnect to the second device after returning to range if the headphones are not currently in a music, call, or meeting state. If it is in any of these states, it will not reconnect to the second device automatically.

  • I've connected my headphones to both my phone and laptop, and am using the headphones for online meetings on my laptop. Why does the phone call audio come from the phone when I receive a call?

    Due to compatibility issues, certain computers or online meeting platforms may repeatedly attempt to take over the audio connection, causing your sound to default back to the online meeting.

    To resolve this:

    1. Configure the online meeting app to use a non-Bluetooth audio channel.
    2. Manually reselect the Bluetooth AG channel in the meeting software.
    3. Alternatively, toggle the headphone’s power switch off and on to trigger automatic Bluetooth reconnection. This will help re-establish the correct audio output channel for the network meeting.

  • Why can't CMF Headphone Pro pair with the Nothing X app on iPhone after a factory reset?

    Please try the following steps to resolve the issue:

    1. Open the Settings app on your iPhone and go to the Bluetooth menu.
    2. If the headphone device appears in the list of previously connected devices, tap the 'i' icon next to it, then select Forget This Device.
    3. Reopen the Nothing X app and follow the pairing process again.

  • Why can't my device find CMF Headphone Pro during pairing?

    1. Device discovery is an interactive process between the phone and the headphones. Sometimes, the phone may experience a Bluetooth logic issue that prevents it from finding the headphones. This doesn't indicate a problem with the headphones. You can try turning Bluetooth off and back on, or restart your device and search again.
    2. If the issue persists, press and hold the Bluetooth pairing button for more than 10 seconds to perform a factory reset. Alternatively, restart the headphones using the power key, and try a forced reboot by holding the Bluetooth pairing button while plugging and unplugging the USB type-C cable, then try pairing again.

  • Why did CMF Headphone Pro not reconnect automatically after moving back into range?

    The headphones will automatically disconnect, when the Bluetooth connection is lost due to distance.

    If you return within 10 minutes, the headphones will reconnect automatically.
    If it takes longer than 10 minutes, the headphones will enter a timeout state and won't reconnect automatically.

    To reconnect, try the following:
    1. Manually tap to reconnect the headphones from your device’s Bluetooth settings, or toggle the power switch off and then on to reinitiate the connection.
    2. Press and hold the multifunction button for 10 seconds or more to restore factory settings, then re-pair the headphones.
    3. If the issue persists, please download and update to the latest firmware using the Nothing X app and try again.

  • Why did CMF Headphone Pro not automatically reconnect to my device?

    Please try one of the following options:

    1. When the earbuds have connection records with multiple devices, they will prioritise reconnecting to the last connected device upon powering on. Please confirm whether the device you last used the earbuds with is the current device you want to connect to.
    2. After the headphones are powered on or exit sleep mode, the reconnection timeout period is 1 minute. If reconnection times out, the headphones will enter pairing mode and remain in this mode for 2 minutes. It is recommended to re-search for the headphones on your device to connect at this time. If no connection is established within 2 minutes, the headphones will enter a disconnected state. Press and hold the Bluetooth pairing button again until the white light flashes, then search for and connect to the headphones on your device.
    3. Please check if a USB-C charging cable or 3.5mm cable is plugged in. When a wired audio connection is established, the headphones will prioritise wired audio, and the Bluetooth connection will be disconnected automatically. When the wired cable is unplugged, the headphones will automatically trigger Bluetooth reconnection.
    4. Press and hold the Bluetooth pairing button for 10 seconds or longer to restore the headphones to factory settings, then re-pair and use them.
    5. If the above steps fail to resolve your issue, please use the Nothing X app to download and install the latest software update, then try again.

    *All device customisations are already integrated into the Settings of Nothing OS version 1.1.4 and higher. Please keep the Nothing X app updated in the Google Play Store.

  • I've connected Ear (3) to both my phone and laptop, and am using the earbuds for online meetings on my laptop. Why does the phone call audio come from the phone when I receive a call?

    Due to compatibility issues, certain computers or online meeting platforms may repeatedly attempt to take over the audio connection, causing your sound to default back to the online meeting.

    To resolve this:
    1. Configure the online meeting app to utilise a non-Bluetooth audio channel.
    2. Should the earbuds fail to relay audio from the online meeting, manually reselect the Bluetooth AG channel in the meeting software. Alternatively, re-pair the earbuds by placing them in the case for 5 seconds and then reopen the case to reconnect.

  • Why can't I pair Ear (3) to my iPhone after reset?

    To pair your Ear (3) to your iPhone after a reset, follow the steps below:

    1. Open Settings on your iPhone.
    2. Tap on Bluetooth.
    3. Find the earbuds you want to delete.
    4. Tap the 'i' icon next to the earbuds.
    5. Tap Forget this device.
    6. Confirm the action by tapping Forget this device in the pop-up.
    7. Open the Nothing X app to pair the earbuds again.

  • Why can't I see Ear (3) on the Bluetooth list on my phone?

    To solve the issue, try the following solutions:

    1. Turn your phone's Bluetooth off and on, or restart your device to try and establish a connection.
    2. If the problem persists, place both earbuds in the charging case, close the lid and wait for 30 seconds to allow the earbuds to reboot. Alternatively, place them in the case and open the lid and long-press the function key for at least 10 seconds to restore to factory settings. Then try connecting again.

  • Ear (3) isn't reconnecting to a device within the Bluetooth range. What can I do?

    The earbuds automatically disconnect when the Bluetooth connection exceeds the range. If you return to the connection range within 10 minutes, they automatically reconnect. If they stay outside of the connection range for more than 10 minutes, they enter a timeout state without a connection. To reconnect, try one of the following options:

    1. Reconnect them manually. Simply place the earbuds into the charging case, close it for 5 seconds, and then open the charging case to power on the earbuds and initiate the connection.
    2. Long-press the function button on the charging case for 5 seconds and reset to factory settings – the reset is complete when the indicator light flashes red for 10 seconds. Then pair again.
    3. If the issue remains unresolved, please download and upgrade to the latest version of the Nothing X app and try again.

  • What should I do if Ear (3) doesn't automatically connect / reconnect to my device?

    Please try one of the following options:

    1. When the earbuds have connection records with multiple devices, they will prioritise reconnecting to the last connected device upon powering on. Please confirm whether the device you last used the earbuds with is the current device you want to connect to.
    2. Once you've removed the earbuds from the charging case, the earbuds will enter a timeout state without connection if the last connected device is not found within one minute. To exit this state, place the earbuds back in the charging case, close the lid for 5 seconds, then reopen it to initiate a new connection.
    3. Press and hold the function button on the charging case for 10 seconds or more to restore factory settings, then re-pair the earbuds.
    4. If the above steps do not resolve the issue, please use the Nothing X app to download and update to the latest firmware and try again.

    *All device customisations are integrated into Nothing OS version 1.1.4 and above. Please keep the Nothing X app updated via the Google Play Store.

  • My iPhone is simultaneously connected to both earphones and my watch. Why is the Essential News sound coming from the watch instead?
    This is due to the compatibility limitations of the iOS system. When an iPhone is simultaneously connected to a Bluetooth headset and a smartwatch, the system will determine the audio output device based on the order of connection:
    If you connect the headset first and then the watch, the voice of the news broadcast will be output from the watch.
    If you connect the watch first and then the headset, the sound will be output from the headset.
    It is recommended that when using voice functions such as news broadcasts, you adjust the connection order of the devices according to your needs to ensure that the sound is played from the device you expect.
     
    Note: This feature is currently only available to overseas users.
  • What can I do if PIN code error is displayed while pairing my watch with my phone?

    1. If your Watch 3 Pro is paired with another mobile device, disconnect it first before pairing it with your phone. If you are still unable to pair the Watch 3 Pro, you can try resetting it to factory settings before pairing it again.
    2. If the above instructions cannot resolve your issue, press the button on the Watch 3 Pro to enter Settings > System Menu, then click Restart. Or, press and hold the button, then click Restart and check again.
    3. To experience the latest firmware features, you can upgrade the firmware to the latest version in the Nothing X app. To do this, open the Nothing X app, go to the My Devices >About> Firmware update.
    4. If the above steps do not resolve the issue, press the button on Watch 3 Pro to enter Settings >System Menu. Click Reset. Then, check again to see if the issue is resolved.

  • What can I do if my phone cannot detect my Watch 3 Pro's bluetooth?

    1. Check for Other Connections:
    - Ensure that the watch's Bluetooth is not connected to another phone.
    2. Bluetooth Functionality:
    - Verify that your phone can search for other Bluetooth devices in the Bluetooth settings list to rule out any issues with the phone itself.
    3. Other Device Connections:
    - Confirm if other devices are currently connected to the watch.
    4. Restart the Watch:
    - If the above steps do not resolve the issue, press the Functional Crown on the watch to enter Settings > System Menu > tap Restart, or long-press the crown and select Restart, and check again.
    5. Firmware Upgrade:
    - In the Nothing X app, go to the My Devices > About > Firmware update. to update the firmware to the latest version.
    6. Reset the Watch:
    If the above steps do not resolve the issue, press the Functional Crown on the watch to enter Settings > System Menu > tap Reset, and check if the issue is resolved.

  • Why does my headphones only reconnect to one device after walking away and coming back, even though it was connected to two devices with dual connection?
    For a better user experience, when the headphones are in dual connection mode and disconnects due to exceeding the connection range, it will only automatically reconnect to the second device after returning to range if the headphones are not currently in a music, call, or meeting state. If it is in any of these states, it will not reconnect to the second device automatically. Rest assured that this behavior is normal and not a malfunction.
  • I've connected my headphones to both my phone and laptop, and am using the headphones for online meetings on my laptop. Why does the phone call audio come from the phone when I receive a call?
    Due to compatibility issues, certain computers or online meeting platforms may repeatedly attempt to take over the audio connection, causing your sound to default back to the online meeting. To resolve this: 1. Configure the online meeting app to utilise a non-Bluetooth audio channel. 2. Should the headphones fail to relay audio from the online meeting, manually reselect the Bluetooth AG channel in the meeting software. Alternatively, toggle the headphone’s power switch off and on to trigger automatic Bluetooth reconnection. This will help re-establish the correct audio output channel for the network meeting.
  • Why can't my device find the headphones during pairing?
    1. Device discovery is an interactive process between the phone and the headphones. Sometimes, the phone may experience a Bluetooth logic issue that prevents it from finding the headphones. This is not a headphone malfunction. You can try turning Bluetooth off and back on, or restart your device and search again. 2. If the issue persists, press and hold the Bluetooth pairing button for more than 10 seconds to perform a factory reset. Alternatively, restart the headphones using the power key, and try a forced reboot by holding the Bluetooth pairing button while plugging and unplugging the USB Type-C cable, then try pairing again.
  • Why does it take a while for my headphones to output sound after connecting to a device?
    Due to compatibility issues related to Bluetooth connection priority and dual connection functionality on some devices, a delay in audio output may occur during music channel switching or connection snatching in dual connection mode. This is a common issue that may affect over-ear Bluetooth headphones across the market. We recommend directly connecting the headphones to the device you want to use, and closing background audio apps on other connected devices. This is not a fault with the headphones—please feel assured in using them.
  • Why didn’t my headphones reconnect automatically after moving back into range?
    When the Bluetooth connection is lost due to distance, the headphones will automatically disconnect. If you return within 10 minutes, the headphones will reconnect automatically. If it takes longer than 10 minutes, the headphones will enter a timeout state and will not reconnect automatically. You can try the following steps: 1. Manually tap to reconnect the headphones from your device’s Bluetooth settings,or toggle the power switch off and then on to reinitiate the connection. 2. Press and hold the multifunction button for 10 seconds or more to restore factory settings, then re-pair the headphones. 3. If the issue persists, please download and update to the latest firmware using the Nothing X App and try again.
  • Why didn't the headphones automatically reconnect to my device?
    1. When the headphones have a connection history with multiple devices, they will prioritise reconnecting to the last connected device upon startup. Please confirm whether the device you are currently using was the last one connected to the headphones. 2. After powering on or exiting sleep mode, the headphones will attempt to reconnect for 1 minute. If reconnection is unsuccessful, they will enter pairing mode for 2 minutes. During this time, we recommend re-searching for the headphones on your device and connecting manually. If not connected within 2 minutes, the headphones will enter an unconnected state and require a manual press of the Bluetooth pairing button until the white LED starts flashing to enter pairing mode. 3. Please check if a USB-C Audio or 3.5mm cable is inserted. When a wired connection is detected, it will take priority, and the Bluetooth connection will be automatically disconnected. Once the cable is removed, the headphones will automatically trigger Bluetooth reconnection. 4. Press and hold the Bluetooth pairing button for 10 seconds or more to restore the headphones to factory settings, then re-pair them. 5. If the issue persists, please download and update to the latest firmware using the Nothing X App and try again. All device customisations are already integrated into the Settings of Nothing OS version 1.1.4 and higher. Please keep the Nothing X app updated in the Google Play Store.
  • What can I do if my phone cannot detect my Watch 3 Pro's Bluetooth?
    1. **Check for Other Connections**:
    - Ensure that the watch's Bluetooth is not connected to another phone.
    2. **Bluetooth Functionality**:
    - Verify that your phone can search for other Bluetooth devices in the Bluetooth settings list to rule out any issues with the phone itself.
    3. **Other Device Connections**:
    - Confirm if other devices are currently connected to the watch.
    4. **Restart the Watch**:
    - If the above steps do not resolve the issue, press the Functional Crown on the watch to enter **Settings** > **System Menu** > tap **Restart** or long-press the crown and select **Restart** and check again.
    5. **Firmware Upgrade**:
    - In the Nothing X app, go to the **Device** page and select **Device Upgrade** to update the firmware to the latest version.
    6. **Reset the Watch**:
    If the above steps do not resolve the issue, press the Functional Crown on the watch to enter **Settings** > **System Menu** > tap **Reset** and check if the issue is resolved.
  • Why don't the earbuds automatically reconnect to my phone when the charging case is low on battery?

    1. When the charging case is low on battery, it cannot charge the earbuds but can still attempt to reconnect them. We recommend closing the lid, waiting for 2 seconds, and then reopening it.

    2. When the charging case battery is extremely low, it cannot charge the earbuds or facilitate reconnection. Recharging the case will restore normal functionality.

    We strongly recommend charging the charging case as soon as possible when the battery is low.

  • I've connected CMF earbuds to both my phone and laptop, and am using the earbuds for online meetings on my laptop. Why does the phone call audio come from the phone when I receive a call?

    Due to compatibility issues, certain computers or online meeting platforms may repeatedly attempt to take over the audio connection, causing your sound to default back to the online meeting.

    To resolve this:
    1. Configure the online meeting app to utilise a non-Bluetooth audio channel.
    2. Should the earbuds fail to relay audio from the online meeting, manually reselect the Bluetooth AG channel in the meeting software. Alternatively, re-pair the earbuds by placing them in the case for 5 seconds and then reopen the case to reconnect.

  • Why can't I see CMF earbuds on the Bluetooth list on my phone?

    1. Turn your phone's Bluetooth off and on, or restart your device to try and establish a connection.
    2. If the problem persists, place both earbuds in the charging case, close the lid and wait for 30 seconds to allow the earbuds to reboot. Alternatively, place them in the case and open the lid and long-press the function key for at least 10 seconds to restore to factory settings. Then try connecting again.

  • What should I do if CMF earbuds doesn't reconnect to a device within the Bluetooth range?

    1. The earbuds automatically disconnect when the Bluetooth connection exceeds the range. If you return to the connection range within 10 minutes, they automatically reconnect. If they stay outside of the connection range for more than 10 minutes, they enter a timeout state without a connection. You can manually reconnect them. Simply place the earbuds into the charging case, close it for 5 seconds and then open the charging case to power on the earbuds and initiate the connection .
    2. Long-press the function button on the charging case for 5 seconds and reset to factory settings – complete when the indicator light flashes red for 10 seconds. Then pair again.
    3. If the issue remains unresolved, please download and upgrade to the latest version of the Nothing X App and try again.

  • I've connected Ear (open) to both my phone and laptop, and am using the earbuds for online meetings on my laptop. Why does the phone call audio come from the phone when I receive a call?

    Due to compatibility issues, certain computers or online meeting platforms may repeatedly attempt to take over the audio connection, causing your sound to default back to the online meeting.

    To resolve this:
    1) Configure the online meeting app to utilise a non-Bluetooth audio channel.
    2) Should the earbuds fail to relay audio from the online meeting, manually reselect the Bluetooth AG channel in the meeting software. Alternatively, re-pair the earbuds by placing them in the case for 5 seconds and then reopen the case to reconnect.

  • Why can't I see Ear (open) on the Bluetooth list on my phone?

    1. This is not to do with Ear (open) but rather with your phone. Turn your phone's Bluetooth off and on, or restart your device to try and establish a connection.
    2. If the problem persists, place both earbuds in the charging case, close the lid and wait for 30 seconds to allow the earbuds to reboot. Alternatively, place them in the case and open the lid and long-press the function key for at least 10 seconds to restore to factory settings. Then try connecting again.

  • What should I do if Ear (open) doesn't reconnect to a device within the Bluetooth range?

    1. The earbuds automatically disconnect when the Bluetooth connection exceeds the range. If you return to the connection range within 10 minutes, they automatically reconnect. If they stay outside of the connection range for more than 10 minutes, they enter a timeout state without a connection. You can manually reconnect them. Simply place the earbuds into the charging case, close it for 5 seconds and then open the charging case to power on the earbuds and initiate the connection .
    2. Long-press the function button on the charging case for 5 seconds and reset to factory settings – complete when the indicator light flashes red for 10 seconds. Then pair again.
    3. If the issue remains unresolved, please download and upgrade to the latest version of the Nothing X App and try again.