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iPhone XS Max coming in with a low ear speaker and non functioning loud speaker. Replaced ear speaker, its working better now. Replaced loud speaker, still not working. Replaced charging port as well as it connects to the loud speaker and the loud speaker is still not working. Wondering anyone has any insight. Thank you.
If you have ruled out parts the next thing to do would be diode the dock FPC connector than move on to the speaker amp.
