Einleitung
Defective motherboard can cause numerous different problems, and replacing the motherboard is usually a last resort. However, replacement will fix many different problems. This guide has one tricky step, which is removing a ribbon cable, but someone with little to no technical knowledge should be able to follow this guide.
Werkzeuge
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Push the tab located at the bottom of the battery towards the top of the phone.
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Lift the battery away from the phone.
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Grasp the antenna between two fingers and turn it counterclockwise until it is unscrewed.
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Pull the antenna straight out of the phone.
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Using a Torx T8 screwdriver, remove the two screws exposed after removing the sticker by unscrewing counterclockwise.
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Starting from the bottom and working towards the top, use a spudger to pry the back cover off the phone.
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Using a Torx T8 screwdriver, remove the two circled screws by unscrewing counterclockwise.
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Using a pair of tweezers, firmly grasp the connector at the top of the phone and pull the connector straight away from the phone.
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Unclip the ribbon cable, located underneath the motherboard, by using the spudger to push up on the dark brown part of the connector located on the circuit board.
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Remove the motherboard by firmly grasping the edges of the circuit board with one hand and the phone with the other and pulling up on the motherboard slightly and then pulling it straight down toward the bottom of the phone.
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To reassemble your device, follow these instructions in reverse order.
