A reset clears the pairing list stored inside the headphones. It fixes pairing problems, and it does not fix audio that plays to the wrong device.
Try this before resetting
Resetting loses your settings, so it is worth ruling out the easier causes first.
- Forget the device on the phone. Remove the headphones from the Bluetooth list and pair fresh. A corrupted pairing record on the source side is common and this alone fixes many cases.
- Check the output selector. Connected but silent almost always means audio is routing elsewhere.
- Move away from interference. Bluetooth shares spectrum with WiFi and microwaves. Dropouts near a router are usually congestion, not a fault.
- Check the pairing limit. Many headphones store a fixed number of devices and silently drop the oldest, which looks like a random failure.
- Charge them fully. Low battery causes erratic connection behaviour long before the headphones announce it.
The general reset method
Manufacturers differ, but the underlying pattern is consistent across most brands.
- True wireless earbuds. Put both buds in the case, leave the lid open, and hold the case button for roughly fifteen to thirty seconds until the indicator flashes an unusual colour.
- Over-ear headphones. With the headphones off, hold power together with a second button, commonly volume down or the assistant key, for around ten seconds.
- Confirmation. A successful reset almost always announces itself with a different light pattern or a spoken prompt, not just a normal power cycle.
If nothing distinctive happens, the reset did not run. Holding the buttons longer rarely helps, whereas checking the exact combination for your model usually does.
After resetting
Remove the headphones from the Bluetooth list on every device that has ever paired with them, not just the one you are using. Stale records on other devices cause the headphones to grab a connection you did not intend, which presents as a device that will not pair when in fact it already has, silently, to a laptop in another room.
When a reset will not help
Crackling on one side, a channel that cuts out when the cable or headband flexes, and rapidly falling battery life are hardware symptoms. Resetting cycles the firmware and leaves the physical fault untouched. For true wireless earbuds, one bud draining much faster than the other usually indicates a failing cell or dirty charging contacts, and cleaning the contacts with a dry cotton bud is worth trying before assuming the worst.