Can’t Connect to Bose QC35 II

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In the realm of wireless audio, seamless connectivity is paramount to enjoying an immersive listening experience. The Bose QuietComfort 35 II (QC35 II) headphones have earned acclaim for their exceptional comfort, noise cancellation, and sound quality. However, for some users, the frustration of being unable to connect to their Bose QC35 II headphones can be a significant barrier to enjoying their audio content. In this comprehensive troubleshooting guide, we delve into the common causes behind connection issues and explore potential solutions to help users overcome connectivity woes with their QC35 II headphones.

Overview of the Bose QC35 II

The Bose QC35 II headphones have established themselves as a benchmark in the wireless headphone market, offering users an unparalleled combination of comfort, audio performance, and noise cancellation. Designed for discerning audiophiles and frequent travelers, these headphones promise to deliver an immersive listening experience that transports users into the heart of their favorite music, podcasts, and audio content.

Common Causes of Connection Problems

  1. Bluetooth Interference: Wireless headphones like the Bose QC35 II rely on Bluetooth technology to establish connections with devices. Interference from other Bluetooth devices, Wi-Fi networks, or electronic appliances can disrupt the pairing process or cause connectivity issues.
  2. Outdated Firmware: Firmware updates play a crucial role in maintaining the stability and performance of wireless headphones. Outdated firmware on the QC35 II headphones or the connected device may lead to compatibility issues or connectivity problems.
  3. Software Glitches: Occasionally, software glitches or bugs in the operating system of the connected device can interfere with the Bluetooth connection process. Resetting the headphones or the device may help resolve these issues.
  4. Physical Obstructions: Physical barriers such as walls, furniture, or other objects can obstruct the Bluetooth signal between the headphones and the connected device, leading to weakened or unstable connections.
  5. Battery Level: Low battery levels on either the headphones or the connected device can affect Bluetooth connectivity. Ensuring that both devices are adequately charged can help maintain stable connections.

Troubleshooting Steps

  1. Ensure Proper Pairing: Begin by ensuring that the Bose QC35 II headphones are in pairing mode and that Bluetooth is enabled on the device you wish to connect. Follow the pairing instructions provided in the user manual or on the Bose website.
  2. Update Firmware: Check for firmware updates for both the QC35 II headphones and the connected device. Updating to the latest firmware versions can address compatibility issues and improve connectivity.
  3. Reset the Headphones: Performing a reset on the Bose QC35 II headphones can sometimes resolve connectivity problems. To reset the headphones, turn them off, then press and hold the power button for 10 seconds until the Bluetooth light blinks blue.
  4. Clear Bluetooth Pairing List: If the headphones have trouble connecting to a specific device, try clearing the Bluetooth pairing list on both the headphones and the device. This can help remove any conflicting or outdated pairing information.
  5. Move Closer to the Device: If connectivity issues persist, try moving closer to the device you are trying to connect to. Eliminating physical obstructions and reducing the distance between the headphones and the device can strengthen the Bluetooth signal.
  6. Check for Interference: Identify and eliminate sources of Bluetooth interference, such as other wireless devices or electronic appliances operating on the same frequency band. Moving away from sources of interference can help stabilize the Bluetooth connection.
  7. Restart Devices: Sometimes, a simple restart of both the headphones and the connected device can resolve connectivity issues. Powering off both devices, waiting a few seconds, and then powering them back on can refresh the Bluetooth connection.
  8. Contact Support: If all troubleshooting steps fail to resolve the issue, contacting Bose customer support may be necessary. Bose representatives can provide further assistance and guidance in diagnosing and resolving connectivity problems.


In conclusion, connection issues with the Bose QC35 II headphones can be frustrating but are often solvable with the right troubleshooting steps. By identifying common causes such as Bluetooth interference, outdated firmware, or software glitches, users can take proactive measures to address connectivity problems and enjoy a seamless audio experience with their QC35 II headphones.

Whether it’s ensuring proper pairing, updating firmware, or minimizing Bluetooth interference, following the troubleshooting steps outlined in this guide can help users overcome connectivity woes and get the most out of their Bose QC35 II headphones. With a little patience and persistence, users can restore reliable connections and continue to enjoy the exceptional comfort and audio performance that the QC35 II headphones are known for.

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