Xiaomi k30 hands-free no sound.

It's a phone software or hardware problem.

1, adjust the volume, and check whether the phone is in silent mode.

2. Clear the phone cache or restore the factory settings, or update the phone system to the latest version.

3. Xiaomi K30 is a powerful smart phone, which uses Snapdragon 765G processor, supports 5G network, and is equipped with advanced technologies such as 64MP four cameras and liquid cooling.