Einleitung
Replace your faulty motherboard with a new one.
Werkzeuge
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Remove the battery cover by applying pressure and sliding down the silver square on the back of the phone.
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Remove the battery by prying under it with your finger or the plastic opening tool.
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Remove the four small 3/8" long screws using a 1/16" diameter torx screwdriver.
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Unhook both sides of the white wire from the motherboard using the plastic opening tool from before
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At the top of the phone, locate the gloss SATA cable strap connecting the LCD screen to the phone.
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Using the prying tool, unattach this cable by levering under the connector
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There will be two small clips on each side of the motherboard. Using the plastic opening tool unhook each clip one at a time
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Once all four clips are unhooked you should be able to pull the motherboard from the casing using your hands.
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After you remove the old motherboard, you can then replace it with a new one.
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To reassemble your device, follow these instructions in reverse order.