iPhone XR bottom mic not working
I replaced my iPhone XR’s battery and the bottom mic won’t work. I replaced everything correctly with a YouTube video.
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Although this is an old question, I’m adding some info in here in the case that somebody stumbles into this.
The bottom microphone in almost all iPhones is part of the charge port connector assembly. The microphone(s) live on arm of this cable. Damage to that cable in general is not uncommon, but more than likely something in the charge port assembly got nicked during battery removal. The mic on top is the primary mic and is labeled a “Mic1” by the system. The other microphone is probably for noise isolation or filtration.
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hello James,
if it doesn't work, it can only mean that you didn't do it well enough. I suggest you disconnect everything again and try to do it more carefully this time. I mean the efficiency of connecting the DOCK flex tape to the phone's motherboard, the Taptic engine port and the loudspeaker. Additionally, check if you did not damage the protruding piece of the microphone tape by removing the adhesive tape from under the battery -> it sticks out slightly below the battery. Most often, however, it is the problem of connecting the connector in the port.
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It happened to me as well, I opened it and checked everything but the mic was still not working. I think Apple disables some parts intentionally so you don't repair your phone next time and buy a new phone.
von Benjmain Ronneling