Asus Chromebook C300SA-DS02 Daughterboard Replacement

Written By: Austin Blakely
  • Comments: 4
Asus Chromebook C300SA-DS02 Daughterboard Replacement

Difficulty

Moderate

Steps

14

Time Required

50 minutes

Introduction

This guide will show the procedure to replace a faulty daughterboard in an Asus Chromebook C300SA-DS02. This should solve problems with the right side USB port. Due to design choices, the display hinges sit atop the motherboard and daughterboards. So while it is not necessary to disconnect the cable connections to the display, you should exercise

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    • Power the laptop off and make sure the charger is unplugged before starting.

    • Remove the eight 8.0mm Phillips #0 screws on the bottom of the laptop.

    • Remove the three 6.0mm Phillips #0 screws.

    I appear to have FIVE of the smaller screws. The four securing the near edge and the one in the center are smaller than the four securing the far edge and the left and right sides. Either your diagram is wrong, or someone screwed mine together incorrectly.

    brucegreer -

    Mine is the same way — six long screws, five short ones. The screw paths seem to correspond accordingly.

    Paul Wagenseil -

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    • Open the laptop.

    • Using an iFixit opening tool, pry along the edges of the keyboard.

    • Lift the keyboard and slide it gently towards you.

    • Do not completely remove the keyboard. It is still connected to the back panel by a pair of ribbon cables.

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    • Disconnect the two ZIF connectors by prying up the locking bar with a spudger and removing the ribbon cable.

    Peut-on trouver le verrouillage zif en détail sur internet ou autres ?

    Jeremy Audy -

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    • Remove the keyboard from the laptop.

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    • Remove the six 5.6mm Phillips #0 screws around the battery.

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    • Using your thumb and index finger, pinch the multi-color cable and disconnect it from the motherboard.

    A serious omission is that there is a metal clamp holding the battery connector in place that MUST be slid back in order for the connector to be lifted up and off.

    Rob -

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    • Lift the battery out of the laptop.

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    • Unplug the black and white cable from the motherboard.

    • These two wires connect to the antenna within the display assembly. The white cable is longer and connects to the bottom import.

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    • Peel back the tape covering the display cable.

    • Ease the cable towards the screen and out from the connector.

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    • Use a Phillips #0 driver to remove the six 5mm screws on the top right and left display hinges.

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    • Gently lift the display assembly up and away from the laptop.

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    • Using your Phillips #0 screwdriver, unscrew three, 3.6mm screws from the silver heat sink.

    • Remove the heat sink from the motherboard.

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    • Use a spudger to flip up the locking tab on the ZIF connector of the daughterboard.

    • Slide the ribbon cable from the connector.

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    • Remove the daughterboard by lifting it from the bottom case.

Conclusion

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

Author

Austin Blakely

Member since: 11/03/19

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