This small printed circuit board, to which the Type C charging Port and the jack socket are soldered, also controls the microphone, the network and the loudspeaker. If any of these functions malfunction, this component will need to be replaced.
This part is multi-functional; it allows you to connect the Type-C charger, the headphone jack module and the call microphone to your Mate 20.
If you’re experiencing the following issues, you’ll need to replace it:
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