Introduzione

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.

  1. Flip laptop over with the battery facing toward you.
    • Flip laptop over with the battery facing toward you.

    • Slide both tabs with the lock/unlock symbol, near the battery on the right of the notebook, to the unlock position.

    • Grab the top edge of the battery & lift upward to relieve the battery from its slot.

  2. Remove the one black 8mm Phillips #0 screw.
    • Remove the one black 8mm Phillips #0 screw.

    • Lift and remove the bottom cover panel using the plastic opening tool.

  3. Remove the four 8mm Phillips #0 screws.
    • Remove the four 8mm Phillips #0 screws.

    • Lift and remove the drive.

  4. Remove the single silver 8mm Phillips #0 screw.
    • Remove the single silver 8mm Phillips #0 screw.

    • Remove the three 8mm Phillips #0 screws.

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  6. Remove the seven black 8mm Phillips #0 screws around the perimeter.
    • Remove the seven black 8mm Phillips #0 screws around the perimeter.

    • Remove the two silver 8mm Phillips #0 screws that are under the battery.

  7. Flip the device right-side up and pry up the keyboard and touchpad gently using both hands.
    • Flip the device right-side up and pry up the keyboard and touchpad gently using both hands.

  8. Release the ZIF (zero insertion force) connector using a plastic spudger.
    • Release the ZIF (zero insertion force) connector using a plastic spudger.

    • Remove the ribbon cable by hand from the ZIF connector.

    • Do not use too much force when releasing the ZIF connector.

  9. Remove the two remaining ribbon cables as described in Step 7. Remove the two remaining ribbon cables as described in Step 7.
    • Remove the two remaining ribbon cables as described in Step 7.

  10. Unscrew the two black 8mm Phillips #0 screws.
    • Unscrew the two black 8mm Phillips #0 screws.

    • Firmly grasp each antenna head with a pair of blunt tweezers and detach it by lifting up straight.

    • The antenna cables are connected through small sockets. Small popping sounds when attaching and detaching the antennas are normal.

  11. Remove the five black 8mm Phillips #0 screws.
    • Remove the five black 8mm Phillips #0 screws.

  12. Firmly grab the optical drive and remove it by sliding it out.
    • Firmly grab the optical drive and remove it by sliding it out.

  13. Lift the motherboard gently to completely remove this component from the device. Detach Audio Cable gently by hand and you have now access to replace the power jack.
    • Lift the motherboard gently to completely remove this component from the device.

    • Detach Audio Cable gently by hand and you have now access to replace the power jack.

Conclusione

To reassemble your device, follow these instructions in reverse order.

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