Bose headphones troubleshooting

The American brand BOSE is known for its striving for the heights of the perfect sound. The company BOSE was founded more than half a century ago. It has considerable experience in the production and development of premium class acoustic systems. BOSE headphones have stereo-adapters, which enable you to connect them to a home stereo. Most models come with built-in remote control and microphone extending their functionality. In case of their malfunction, please refer to the troubleshooting table below.

Bose 41215 headphones troubleshooting

ProblemWhat to do
No audioMake sure that the headphone plug is securely connected to the headphone jack (not the line out jack) of the audio device.
Intermittent audioMake sure each cord connection is securely attached.
Excessive bassTurn off any bass boost or other audio enhancement features on the audio source.
Distorted bassMake sure that the ear cup ports are not blocked in any way. If they are dirty, gently wipe away any debris. Also check to see that the cushions are completely snapped onto the ear cups.
Misshaped cushionsThe cushions may appear deformed when removed from the case or the packaging. However, after a few minutes the cushions should regain their natural shape.

Bose AE2w headphones troubleshooting

ProblemWhat to do
The headphones do not charge• When charging, make sure both ends of the USB cable are firmly connected.
• If you are using a power outlet, be sure the power supply is securely plugged in and the outlet is working.
• If you are using your computer, be sure the computer is plugged in and the USB port is powered.
• If solid red Indicator appears, the headphone temperature is too hot or cold. Return to room temperature conditions before charging.
• Turn headphone on and then off. Disconnect and reconnect the USB charging cable.
The headphones and the Bluetooth device do not pair• Make sure the headphones are not connected to the charger and the power switch is on.
• Turn the device off. then on again.
• Turn on the Bluetooth feature on the device.
• Turn off the Bluetooth feature on any other device that is paired with the headphones.
• Clear the paired device list from the headphones by pressing and holding Multi-function and Volume - for 10 seconds.
• See “To pair the headphones with your device" on page 6.
• Try pairing with a different device to ensure the headphones are working properly.
The headphones and the Bluetooth device do not connect• Make sure the headphones are not connected to the charger and the power switch is on.
• Make sure the Bluetooth feature on the device is on.
• Make sure the headphones are within range of the device: up to 33 feet (10 m).
• Turn off the Bluetooth feature on any other device that is paired with the headphones
• Turn the headphones off. then on again, the headphones should automatically connect to the device. If it does not automatically reconnect, select "Bose AE2w” in the device’s pairing list.
• Power the device off. then on again.
• Try connecting to a different paired device to be sure the headphones are working properly.
No audio or poor audio quality from a streaming audio source/application• Make sure the streaming audio source is on and playing.
• Make sure the audio device supports A2DP audio streaming.
• Try another streaming audio source/application or try another track.
• Make sure the device's Bluetooth volume is turned up and not muted.
• Move the device closer to the headphones (33 feet or 10 m).
• Move the device and headphones away from any device that could cause interference, such as another Bluetooth device, cordless phones, a microwave oven, or a wireless computer network router.
• Reduce the number of applications that are running on your device. Disabling Wi-Fi functionality on the device may also improve audio quality.
No audio or poor audio quality from a connected device• If using a Bluetooth device, ensure that the control module is firmly connected to the headphones.
• If using the 3.5 mm audio cable, ensure both ends of the audio cable are firmly seated.
• Try another music application or try another track.
• Try a different audio device.
• Make sure both ear cushions are firmly secured.
Audio does not match video• Try another streaming audio device or application or try another track. Some delay is expected from some sources or applications.
Mis-shaped cushion• The high-density earcup foam will regain its shape after a few minutes in a neutral position.
Short battery life• Fully charge the headphones. When fully charged, the battery indicator will glow solid green (while on the charger).
• When fully charged, your AE2w Bluetooth headphones will provide approximately 7 hours of wireless audio or approximately 200 hours of standby time.
• Disable tones and notifications in your device that may be frequently sent to the headphones.
• Be aware that some devices may drain the headphones battery more quickly than others.
• See page 5 of this document for more information on understanding battery performance.

Bose Aviation Headset X headphones troubleshooting

ProblemWhat to do
Communication but no active noise reduction in either ear• Ensure that the headset is powered, and that the ON/OFF switch is set to ON.
• If using aircraft power, check the aircraft fuse or circuit breaker. The LED should be lit.
• If using battery power, ensure that the battery is fresh and correctly installed.
• Check that the LED is lit. (A blinking green LED indicates a good battery. A steady red LED indicates a low battery.)
Active noise reduction but no communication or very low volume communication in both ears
• Check to see if the volume controls are set too low. (See Volume Control for method of adjusting volume.)
• Check the volume setting of intercom/radio.
• Check the headset aircraft connection.
Reduced active noise reduction, intermittent clicking sounds, or communication distortion in a loud environment• Check the ports at the outside surface of each earcup to ensure they are not blocked. If dust or dirt is present, carefully remove the debris using tweezers. Do not vacuum or blow out debris.
Reduced volume in one ear only• Check to see if the volume control is set too low. (See Volume Control for method of adjusting volume.)
Stereo missing or communcations in one ear only• If using with a monaural aircraft audio system, verify that the stereo/mono switch is set to mono.
• If plugged into a monaural system with the switch set to stereo, you will hear only through the earcup to which the cable is attached. Set the switch to mono.
Squealing, whistling, or chirping sound when the system is turned on• Check to see if the protective inner screen is damaged.
Low rumbling sound with headset turned on in a quiet environment



• Adjust the earcup fit to create a better seal on the head.
The headset’s low-force design makes it sensitive to items that interfere with the seal around the ear.
Ensure that the ears are completely inside the ear cushions and that items such as a hat or eyeglasses with thick temples do not interfere with the seal.
• Check ports at the outside surface of each earcup to ensure they are not blocked. If dust or dirt is present, carefully remove the debris using tweezers. Do not blow out or vacuum debris.
• Inspect the seal between the ear cushion skirt and the earcup. The skirt should enclose the earcup evenly, without gaps. If the ear cushion has surface tears, torn stitching joints, large wrinkles, or a surface which has become dried and stiff, replace the ear cushions.
Crackling sound audible with headset turned on in a loud environment, or ANR is intermittent.• Adjust the earcup fit to eliminate the sound. See Wearing the Headset.
• If battery powered, check to see if the battery is low, red light is on.
• If aircraft powered, check that the voltage powering the headset is greater than 10 VDC.
• Inspect the seal between the ear cushion skirt and the earcup. The skirt should fit into the slot on the earcup, without gaps. If the ear cushion has surface tears, torn stitching joints, large wrinkles, or a surface which has become dried and stiff, replace the ear cushions.
No active noise reduction and no communication• Check boom microphone cable connection on the bottom of the earcup.

Bose bluetooth headset series 2 headphones troubleshooting

ProblemWhat to do
The headset has short talk time.• Make sure both ends of the USB cable are firmly connected.
• If you are using a power outlet:
- Be sure the power supply is securely plugged in and the outlet is working.
- Be sure to use the proper power supply adapter (if one is needed in your region).
• If you are using your computer, be sure the computer is plugged in and the USB port is powered.
• Make sure the room temperature is between 41 °F and 104°F (5°C and 40°C) and the product is at room temperature before charging begins.
The headset does not fit properly or feels uncomfortable.• Make sure the headset is in the correct ear and the wing on the StayHear™ tip is flush beneath the ear ridge. (Refer to "Wearing" on page 14.)
• Make sure the tip is firmly attached to the headset.
• Try the large or small tip.
The mobile phone and the headset do not pair.• Make sure both the headset and mobile phone are turned on and the Bluetooth® feature on your phone is activated. Refer to your phone instruction manual for details.
• Turn the headset off, then on again.
• Press Call for at least 5 seconds to make the headset discoverable, then attempt to pair again.
• Make sure the phone is within 33 feet (10 meters) of the headset.
• Turn the phone power off, then on again and attempt to pair again.
The mobile phone and the headset do not connect.• Make sure both devices are turned on and Bluetooth® connectivity is enabled on the phone.
• Turn the headset off, then on again. Make sure the mobile phone is within 33 feet (10 meters) of the headset.
• Check the Bluetooth device list on your phone to be sure Bose BT2 is selected.
- If it is selected, delete it from the list (refer to your phone instruction manual for details).
- If it is no longer listed, repeat “Additional pairing” on page 13.
• Simultaneously hold Call and Volume - for 5 seconds to reset the memory, and pair the headset to the phone again.
• Turn the phone power off, then on again.
What you hear on the headset is not clear.• During a call, adjust the volume on your mobile phone or on the headset by pressing Volume + or -.
• Check your mobile phone signal strength.
• Make sure the mobile phone is within 33 feet (10 meters) of the headset.
• Reposition the headset. Refer to “Fitting” on page 14.
• Clean the wire mesh under the tip. See page 26.
What the other person hears is not clear.• Move the mobile phone closer to your headset.
• Make sure the phone is not near other wireless equipment.
• Reposition the headset. Refer to “Fitting” on page 14.
• Check your mobile phone signal strength.
• Turn the phone power off, then on again.
A call disconnects unexpectedly.• Check the headset to make sure it is on and charged.
• Make sure the mobile phone is within 33 feet (10 meters) of the headset.
• Check the signal strength on your phone and make sure the battery is sufficiently charged.
No audio from a streaming audio source or application.• Make sure the device supports A2DP audio streaming. (The Bluetooth indicator will glow purple.)
• Make sure the device’s Bluetooth volume is turned up and not muted.
• Make sure the streaming audio source is on and playing.
• Move the device closer to the headset.
• Try another streaming audio application.
• Turn the phone power off, then on again.
Poor sound quality from a streaming audio source or application.• Move the device closer to the headset.
• Move the device and headset away from any device that could cause interference, such as another Bluetooth® enabled device, cordless phones, a microwave oven, or a wireless computer network router.
• Reduce the number of Bluetooth applications that are running on your device. (Running multi- ple applications may reduce the amount of inter- nal resources available to transmit audio. Closing all non-essential applications may improve audio quality. Disabling Wi-Fi functionality on the device may also improve audio quality.
• Try another streaming audio application.
• Turn the phone power off, then on again.

Bose QUIETCOMFORT 2 headphones troubleshooting

ProblemWhat to do
No noise reduction• Turn on the headphones.
• Replace the battery.
Low or no volume• Turn the source volume up.
• Set LEVEL switch to HI.
• Check the headphones cord connection at the source and the ear cup.
Crackling noise; intermittent loss of noise reduction• Replace the battery.
Low rumbling sound• Adjust the fit of the headphones on your ears.
• Make sure no foreign objects are inside the ear cups.
Volume too high• Turn the source volume down.
• Set LEVEL switch to LO.

Bose QUIETCOMFORT 35 headphones troubleshooting

ProblemWhat to do
Headphones do not power on• Power on the headphones (see page 9).
• Charge the battery.
Headphones do not connect with Bluetooth* device• Disconnect the back-up audio cable.
• Disconnect the USB charging cable.
• On your Bluetooth device:
- Turn the Bluetooth feature off and then on.
- Delete your Bose* Quiet Comfort* headphones from the Bluetooth list on your device. Pair again.
• Move your Bluetooth device closer to the headphones and away from any interference or obstructions.
• Pair a different Bluetooth device (see page 15).
• Visit owners.Bose.com/QC35 to see how-to videos.
• Clear the headphone pairing list: Slide (!) to $ and hold for 10 seconds. Delete your Bose* Quiet Comfort* headphones from the Bluetooth list on your device. Pair again.
Headphones do not pair with NFC• Make sure your device supports Bluetooth pairing via NFC.
• Unlock your device and turn on the Bluetooth and NFC features.
• Tap the NFC touch point on the back of your Bluetooth device to the NFC touch point on the headphones.
No sound• Power on the headphones and charge the battery.
• Increase the volume on your headphones, your Bluetooth device and music source.
• Slide (1) to $ and release to hear the connected device. Make sure you are using the correct device.
• Move your Bluetooth device closer to the headphones and away from any interference or obstructions.
• Use a different music source.
• Pair a different Bluetooth device (see page 15).
• If two Bluetooth devices are connected, pause your other device first.
• If two Bluetooth devices are connected, move the devices within range of the headphones (30 ft. or 10 m).
Poor sound quality• Use a different music source.
• Pair a different Bluetooth device.
• Disconnect the second device.
• Move your Bluetooth device closer to the headphones and away from any interference or obstructions.
No audio from a device connected by the back-up audio cable• Power on your device and play music.
• Secure the ends of the back-up audio cable.
• Increase the volume on your headphones, your Bluetooth* device and music source.
• Connect a different device.
Poor sound quality from a device connected by audio cable• Secure the ends of the back-up audio cable.
• Connect another device.
Battery won't charge• Secure the ends of the USB charging cable.
• If your headphones have been exposed to high or low temperatures, let the headphones return to room temperature and try charging again.

Bose SoundLink headphones troubleshooting

ProblemWhat to do
No power (AC (mains))• Secure the power cord at both ends.
• Plug the power supply into a live AC (mains) outlet.
• Connect the power cord to a different USB port.
• Use the power supply that shipped with the speaker.
• Use the charging cradle that shipped with your speaker. This speaker is not compatible with the SoundLink Mini Bluetooth® speaker’s charging cradle.
No power (battery)Battery may be in protection mode or discharged. Plug the power supply into a live AC (mains) outlet.
Speaker does not connect with mobile device• On your mobile device:
- Turn off and on the Bluetooth feature.
- Remove the speaker from the Bluetooth menu. Pair again.
• Move your mobile device closer to the speaker and away from any interference or obstructions.
• Pair another mobile device (see page 13).
• Clear the speaker’s pairing list (see page 14).
• Reset the speaker (see page 22).
No sound from your mobile device• Power on the speaker.
• Increase the volume on the speaker, your mobile device and music source.
• Press 1 to hear the connected mobile device(s) and ensure you are using the correct device.
• Move your mobile device closer to the speaker and away from any interference or obstructions.
• Use a different music source.
• Pair another mobile device.
• If two mobile devices are connected, pause your other mobile device first.
• Move your mobile device closer to the speaker and away from any interference or obstructions.
• On your mobile device:
- Turn off and on the Bluetooth feature.
- Remove the speaker from the Bluetooth menu. Pair again.
• Clear the speaker’s pairing list (see page 14).
• Reset the speaker (see page 22).
• Check your mobile device for compatibility. Refer to your mobile device owner’s guide.
Poor sound quality from your mobile device• Use a different music source.
• Pair another mobile device.
• Disconnect the second device.
• Move your mobile device closer to the speaker and away from any interference or obstructions.
Audio plays from the wrong mobile device (when two devices are connected)• Press $ to hear the connected mobile device(s) and ensure you are using the correct device.
• Pause or quit the music source on your mobile device playing music.
• Disconnect the second device.
No audio from the AUX device• Power on the AUX device and play music.
• Secure the 3.5 mm cable to the speaker’s AUX connector and the AUX device.
• Increase the volume on the speaker and AUX device.
• Use a different AUX cable.
• Connect a different AUX device.
Poor sound quality from an AUX device• Secure the 3.5 mm cable to the speaker’s AUX connector and the AUX device.
• Increase the volume on the speaker and AUX device.
• Use a different AUX cable.
• Connect a different AUX device.

Error codes and troubleshooting