Start with a clean baseline
Input and output are separate paths. Prove left/right playback and microphone capture independently before blaming Bluetooth, the app or the entire headset.
Live evidence
Relevant checks
Speaker TestPlay a local test tone to verify audio output.
→Left Right Speaker TestPlay left and right channel tones separately.
→Speaker Frequency Sweep TestPlay a user-controlled frequency sweep for speaker/headphone inspection.
→Bluetooth LE Browser TestOpen the browser Bluetooth chooser for compatible Bluetooth Low Energy devices in supported environments.
→First sequence
Do the high-signal checks before risky changes
- 1
Confirm the speaker is the active output device
- 2
Forget and re-pair if connection state is inconsistent
- 3
Compare another source device before assuming speaker hardware failure
Decision points
What the result should change
If playback passes but microphone failsKeep the diagnosis on input selection, headset profile, mute/gain or microphone hardware.
If only one channel failsCompare cable/earcup/driver and balance settings rather than reinstalling all audio drivers.
If browser audio passes but conferencing audio failsPrioritize the conferencing app's device routing and processing.
Browser can help check
- Play controlled audio references
- Test left and right behavior on stereo devices
- Request compatible BLE devices where exposed
Browser cannot prove
- Force audio codec selection generically
- Measure battery health
- Inspect amplifier or speaker drivers automatically
Repair boundary
Know when to stop browser troubleshooting
- High playback levels can damage hearing; use moderate levels during tests.
- Bluetooth codec/profile negotiation is not fully exposed to websites.
- Battery swelling or heat in wireless audio devices requires service/disposal guidance.
Used-device inspection
What to verify before paying or signing off a repair
- Left/right and frequency sweep at safe level
- Microphone recording and mute controls
- Wired/wireless connection modes and charging behavior