Additional tips on pairing your Liberty 4 NC earbuds with a Samsung Galaxy S23 series mobile phone.
1. Open your phone and go to - Settings - Bluetooth
2. Find soundcore Liberty 4 NC, and press the gear icon on the right
3. Turn on " Calls" and "Audio", and turn off "LE Audio"
4. Go back to Bluetooth, and reconnect Liberty 4 NC
5. After connecting, update the earbuds' firmware to the latest version (V3.73 or above)