1

Check connection status

Before troubleshooting further, check the following:

• Ensure you are not in an active call session. Try pairing after ending the call.

• Turn off LDAC by going to the soundcore app > Sound Settings and try pairing again. When LDAC mode is enabled, dual‑device pairing may not be available.

2

Reduce environmental interference

• Avoid signal interference: Stay away from devices using the 2.4 GHz band, such as Wi‑Fi routers, microwaves, and cordless phones.

• Reduce electromagnetic interference: Make sure there are no strong magnetic or electrical devices nearby (for example, large appliances or power tools).

• Test in an open area: Try pairing and using the headphones in an open space to rule out signal blocking caused by walls or structures.

3

Update firmware and system software

• Update the headphone firmware using the soundcore app or the official firmware update tool, if available.

• Ensure your phone or computer is running the latest operating system version (Android, iOS, or Windows).

• For computer users, check that the Bluetooth adapter driver is up to date.

4

Check device compatibility

• Compatibility differences can also lead to connection issues.

• Try connecting the headphones to another phone, tablet, or computer to see if the issue persists.

• Test your current device with other Bluetooth accessories to confirm whether the issue is device‑specific.

• Make sure the Bluetooth protocols and audio codecs supported by both devices are compatible (such as SBC, AAC, or aptX).

5

Reset

Reset the headphones.

• Ensure the headphones are powered on.

• Press and hold the Power button and Volume "+" buttons simultaneously for 5 seconds. The red power LED will flash slowly 3 times, indicating that the factory reset process has begun.