Einleitung
It is a common issue among ASUS Q400A laptops to refrain from charging. Among battery and charger issues, it is likely that the power jack isn't operating correctly. The following is a guide explaining how to gain access to the power jack for replacement.
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Flip laptop over with the battery facing toward you.
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Slide both tabs with the lock/unlock symbol, near the battery on the right of the notebook, to the unlock position.
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Grab the top edge of the battery & lift upward to relieve the battery from its slot.
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Remove the one black 8mm Phillips #0 screw.
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Lift and remove the bottom cover panel using the plastic opening tool.
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Remove the seven black 8mm Phillips #0 screws around the perimeter.
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Remove the two silver 8mm Phillips #0 screws that are under the battery.
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Flip the device right-side up and pry up the keyboard and touchpad gently using both hands.
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Release the ZIF (zero insertion force) connector using a plastic spudger.
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Remove the ribbon cable by hand from the ZIF connector.
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Unscrew the two black 8mm Phillips #0 screws.
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Firmly grasp each antenna head with a pair of blunt tweezers and detach it by lifting up straight.
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Lift the motherboard gently to completely remove this component from the device.
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Detach Audio Cable gently by hand and you have now access to replace the power jack.
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To reassemble your device, follow these instructions in reverse order.
