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Use this guide to replace the motherboard of your LG V20.
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Insert a spudger or your fingernail under the battery at the small recess on the lower edge.
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Be careful not to deform or puncture the battery.
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Pry up and remove the battery.
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Remove the sixteen 4mm Phillips #00 screws attaching the back cover to the motherboard.
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Use the flat end of a spudger and apply pressure to one of the corners of the frame section until you create a small gap.
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Flip the phone and insert an opening pick in the gap you created.
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Slide the opening pick along the gap until the frame section pops out of its plastic clamps.
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Remove the frame section.
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Repeat this procedure with the frame section on the other end of the phone.
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The loudspeaker is attached to the cover of the motherboard. Use an opening pick to pry it up.
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Use an opening pick to pry up the motherboard cover at the right corner at the bottom of your phone until it pops out of the plastic clamp.
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Slide the opening pick along the mid frame and flip it sideways to open the plastic clamps holding the motherboard cover in its place.
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Use the flat end of a spudger to disconnect the front camera flex cable.
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Use a pair of tweezers to carefully remove the front facing camera. Be careful to only grip the body of the camera, as the top is the sensor pcb and is only held on with glue (removal will ruin the sensor).
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Use the flat end of a spudger to disconnect the flex cable of the left rear camera.
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The second rear camera will come out with the motherboard since it is connected on the other side.
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You can leave the front facing camera in its place as long as you're careful while removing the motherboard assembly. However if you feel uncertain, carefully remove it with a pair of tweezers.
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Disconnect the display flex cable with the flat end of a spudger.
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Use the pointed end of a spudger to lift up the motherboard assembly until you can get a good grip.
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Carefully lift up the motherboard assembly and remove it.
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Flip the motherboard assembly and use the flat end of a spudger to carefully disconnect the flex cable of the rear camera.
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Use a pair of tweezers to remove the rear camera.
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What remains is the motherboard.
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To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.
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CPSU-LIVINGSTON-S17S22G5
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Do you know where the internal memory chip is located?
Is it possible to get schematics for lg v20 motherboard?
Did you find it? I need it too :(
Anyone knows what antenna are located in the lower bumper? Coz one metal contact, which sits right beside the earphone port, has accidentally come off the mainboard. And this contact should connect with another metal clip inside the lower bumper. It must function as some kind of antenna. But what exactly? So far I haven’t noticed anything obviously wrong with the reception after the damage, but still upset about this.
Thanks. I used this guide to help me replace the thermal paste TIM on my LG V20 H990DS… It did make the phone more stable, but didn’t fix image ghosting… Oh well. Thanks again!
