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Follow this guide to remove and replace the daughterboard for the OnePlus 3. The daughterboard contains the loudspeaker, headphone jack, and USB-C port. The hardest part of the guide is getting the frame clips free.
Some guide images will show the battery and an interconnect flex cable already removed from the phone. You do not need to remove these for the daughterboard procedure.
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Insert a SIM eject tool, bit, or straightened paperclip into the hole located between the SIM card slot and the power button.
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Press firmly to eject the SIM card tray.
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Remove the two 2.6 mm T2 screws from the bottom edge of the phone.
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Display panel seam: This seam is part of the display assembly. Do not pry at this seam, or you will separate and damage the display panel.
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Frame seam: This is where the plastic frame meets the back cover. It is recessed into the back cover. Only pry at this seam.
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There are fourteen clips that hold the frame against the rear case. Be aware of their location as you pry the back cover off in the following steps.
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Place a suction cup near the bottom edge of the display.
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Pull on the suction cup with strong steady force.
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Press the edge of an opening tool straight into the frame seam near the suction cup until the edge wedges between the plastic frame and the back cover's lip.
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Once the opening tool's edge is wedged in position, carefully slide the tool along the bottom edge of the phone.
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Carefully guide the opening tool around the left corner of the phone while keeping the tool's edge within the seam.
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Continue sliding the opening tool along the long edge, releasing the clips along the way.
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With the bottom and left edge of the phone freed, gently wiggle the frame to release the top and right edge clips.
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Lift the screen up and remove it.
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Align the top edge of the frame to the back cover and ensure that the top clips slip into place.
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Squeeze along the long edges of the phone to snap the remaining clips into place.
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Use the point of a spudger to pry up and disconnect the battery connector from its socket, located above the top right corner of the battery pack.
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Bend the connector away from the socket to prevent accidental contact.
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Remove the 3 mm Phillips screw securing the cable bracket.
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Remove the cable bracket.
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Use the point of a spudger to pry up and disconnect the interconnect flex cable from the motherboard, which is located above the battery.
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Repeat the process to disconnect the daughterboard flex cable from the motherboard.
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Use the point of a spudger to pry up and disconnect the interconnect flex cable from the daughterboard, which is located below the battery.
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Use the point of a spudger to pry up and disconnect the capacitative buttons connector from its socket on the daughterboard, which is located below the battery.
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Repeat the process to disconnect the fingerprint scanner connector from its socket on the daughterboard.
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Slide the point of a spudger underneath the antenna interconnect cable and pry up, disconnecting it from the daughterboard.
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Remove the seven Phillips screws securing the daughterboard to the frame:
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Two 3 mm black screws
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Five 2.9 mm silver screws
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The daughterboard is still held in place by two plastic clips.
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Slide the flat end of a spudger underneath the loudspeaker vent and gently twist the spudger until the daughterboard is freed from its clips.
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To reassemble your device, follow these instructions in reverse order.
Take your e-waste to an R2 or e-Stewards certified recycler.
Repair didn’t go as planned? Check out our OnePlus 3 Answers community for troubleshooting help.
To reassemble your device, follow these instructions in reverse order.
Take your e-waste to an R2 or e-Stewards certified recycler.
Repair didn’t go as planned? Check out our OnePlus 3 Answers community for troubleshooting help.
