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 jack plug module and the call microphone to your Samsung Galaxy S21 Ultra.
If you’re experiencing the following issues, you’ll need to replace it:
PLEASE NOTE: THIS PART IS ONLY COMPATIBLE WITH THE S21 ULTRA SM-G9980 (CHINESE VERSION)
NOT COMPATIBLE WITH SM-G998B / SM-G998F / SM-G998U
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