Introduction
Use this guide to replace the motherboard on your HTC One M9.
What you need
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The microSD card tray is located on the upper right hand side of the phone, above the volume buttons. To open the tray, insert a microSD card eject tool, or a paperclip, into the small hole in the microSD card tray.
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Then press the tool or paperclip to eject the microSD card tray.
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Insert a SIM card eject tool or a paperclip into the small hole besides the SIM card tray, located on the upper section of the left edge of the phone.
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Press to eject the tray.
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Using a plastic opening pick or a spudger, gently pry and remove the cover on top of the case.
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Remove the two 4 mm T5 Torx screws on the top of the case.
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Work a plastic opening pick around the perimeter of the device to separate the rear case from the display assembly.
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Use a pair of tweezers to disconnect the blue and white antenna cables. Note that some models of this phone will have only one antenna cable at this location.
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Remove the two 1.5 mm Phillips screws securing the battery connector to the motherboard.
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Use a spudger to pry the battery connector from its socket, being careful to apply pressure only to the connector and not to the socket.
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Peel back the Kapton tape from the ZIF connector, then use your fingernail or a spudger to lift the hinged retainer clip on the ZIF connector and slide the cable out.
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Peel back the Kapton tape from the ZIF connector, then use your fingernail or a spudger to lift the hinged retainer clip on the ZIF connector and slide the cable out.
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With the tweezers, carefully lift up on the tape covering the electrical strip shown in the picture.
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Use your fingernail or a spudger to lift the hinged retainer clip on the ZIF connector and slide the cable out.
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Peel back the Kapton tape from the remaining three ZIF connectors, then use your fingernail or a spudger to lift the hinged retainer clips on the ZIF connectors and slide the cables out from each.
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Remove the dual LED flash cover. This is held on with a small amount of adhesive. Be careful here: the flash cover may be glued to the two antenna cables below. Apply a small amount of heat here to soften the adhesive before removal.
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Use a pair of tweezers to disconnect the two antenna cables near the camera. Note that some models of this phone will have only one antenna cable at this location.
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Use a pair of tweezers to disconnect the antenna cable near the bottom of the phone.
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Use a pair of tweezers to gently lift the vibrator out of its crevace. It is held in only with friction, no adhesive or screws. Be careful when lifting to avoid damaging the wires connecting it to the motherboard.
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Use a plastic opening tool or a spudger to gently pry the motherboard out of the case. lift first from the top (near the camera).
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