Are you having trouble hearing the other end of the phone line? It may be time to replace the earpiece speaker. Follow the steps in this guide to replace the earpiece speaker, which also functions as a secondary loudspeaker, in an iPhone 7.
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Power off your iPhone before beginning disassembly.
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Remove the two 3.4 mm pentalobe screws on the bottom edge of the iPhone.
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Use a hairdryer or prepare an iOpener and apply it to the lower edge of the iPhone for about a minute in order to soften up the adhesive underneath.
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Pull up on the suction cup to create a small gap between the display assembly and the rear case.
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Insert the flat end of a spudger into the gap.
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Slide the spudger to the left along the lower edge of the iPhone.
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Twist the spudger to widen the gap between the display and rear case.
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Slide the spudger up the left side of the iPhone, starting at the lower edge and moving towards the volume control buttons and silent switch.
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Insert the flat edge of a spudger into the bottom right corner of the device.
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Twist the spudger to widen the gap between the display assembly and the rear case.
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Slide the flat end of the spudger up the right side of the phone to break up the adhesive holding the display in place.
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Slide an opening pick along the top edge of the iPhone, between the rear case and front panel, to break up the remaining adhesive holding the screen in place.
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Pull the display assembly slightly away from the top edge of the phone to disengage the clips holding it to the rear case.
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Open the iPhone by swinging the display up from the left side, like the back cover of a book.
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Remove four tri-point Y000 screws securing the lower connector bracket, of the following lengths:
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Three 1.2 mm screws
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One 2.4 mm screw
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Use the point of a spudger to lift the battery connector out of its socket on the logic board.
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Use a spudger or a fingernail to disconnect the two lower display connectors by prying them straight up from their sockets on the logic board.
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Remove the two 1.3 mm Phillips #000 screws securing the bracket over the front panel sensor assembly connector.
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Remove the three Phillips screws securing the earpiece bracket to the front panel:
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Two 2.6 mm screws
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One 1.7 mm screw
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Remove the following three Phillips screws securing the earpiece speaker to the front panel:
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One 1.9 mm screw
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One 2.5 mm screw
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One 1.2 mm screw
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