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Use this guide to replace or remove the motherboard in the LG G3 (D855).
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Insert a thumbnail, or a prying tool like a spudger, into the notch at the bottom left of the back cover.
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Pry the back cover up to separate its plastic clips.
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Lift the back cover to release the rest of the plastic clips and remove it.
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Use a fingernail or a prying tool at the marked notch to lever the battery out of its recess.
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Lift the battery out of its recess and remove it.
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Remove the four Phillips #00 screws (4 mm length).
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Insert a thumbnail, or a prying tool like a spudger, into the notch at the bottom left of the back cover you used earlier to remove the back cover.
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Pry up the plastic panel, including the loudspeaker, until you can get a good grip.
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Carefully remove the plastic panel including the loudspeaker by gently pulling it away from the phone assembly.
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Remove the eight Phillips #00 screws (4 mm length).
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Insert an opening pick between the bottom right corner of the motherboard cover and the motherboard.
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Pry up the motherboard cover to open the plastic clips which hold the cover in its place.
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Work your way along the right edge.
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Carefully lift the right edge of the motherboard cover.
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Remove the motherboard assembly.
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Use a spudger to pry up and disconnect the display flex cable.
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Use a spudger to pry up and disconnect the digitizer flex cable.
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Use a spudger to pry up and disconnect the rear camera flex cable.
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Use a spudger to pry up and disconnect the front camera flex cable.
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Slide an opening pick under the bottom right corner of the motherboard and slowly pry it out of its recess by rotating the opening pick sideways.
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Slide the opening pick under the right edge of the motherboard where the SIM card slot is located and pry it up by rotating the opening pick sideways.
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Grab the top section of the motherboard and carefully lift it out of the phone.
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If possible, turn on your device and test your repair before installing new adhesive and resealing.
Take your e-waste to an R2 or e-Stewards certified recycler.
Repair didn’t go as planned? Try some basic troubleshooting, or ask our Answers Community for help.
If possible, turn on your device and test your repair before installing new adhesive and resealing.
Take your e-waste to an R2 or e-Stewards certified recycler.
Repair didn’t go as planned? Try some basic troubleshooting, or ask our Answers Community for help.
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