1. Upgrade the headset firmware to the latest version. If the battery capacity of the headset is greater than 10%, upgrade the headset firmware to the latest version.
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2. Replace the charging cable and charge the earphone for 5 minutes. If the charging cable is damaged, the earphone cannot be charged. It is recommended to replace the charging cable or charge the mobile phone plugged into the USB Type-C port. Wait 15 seconds and observe whether the indicator light is on. Warm reminder: The FreeLace Pro indicator light and microphone are distributed on both sides of the keying box, and the indicator light is located about 1cm next to the power key