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4-inch iPhone released in March 2016 with similar hardware specifications to the 6s. Available in Silver, Space Grey, Gold, or Rose Gold with 16/64 GB storage options. Model A1662 and A1723.

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After replacing battery: loudspeaker not working

I recently replaced the battery and had poor luck with the sticky tabs and had to do a fair amount of prying to get the battery out and must’ve done damage.

Current situation:

  • Headphone jack works
  • Bluetooth sound works
  • No loudspeaker

Have tried:

  • All volume controls
  • Power cycling
  • I replaced the loudspeaker with a new one, but that apparently was not the issue, must be something upstream

Possibly unrelated, but I also have gotten error messages upon startup saying that the TouchID could not function on my phone.

Any advice or tips are greatly appreciated.

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1 Answer

Was the motherboard inside the phone while prying? Tried a new charging port flex?

I don’t work on SE too often but unless I'm mistaken the loudspeaker sits on the charging port flex and operates through that. Which in turn connects to the motherboard instead of having separate flex for speaker and charing port. Could of caused motherboard damaged (very bad) or could of damaged the flex enough to hurt the loudspeaker function but not enough to damage the headphone function.

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