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OLPC XO-4 Touch Touchpad Controller Replacement

OLPC XO-4 Touch Touchpad Controller Replacement

Theodore Tsanakas

Theodore Tsanakas and 6 other contributors

Last updated on November 30, 2019

25 minutes
Moderate

Introduction

Go to step 1

Use this guide to replace a broken touchpad.

What you need

Tools

  1. OLPC XO-4 Touch Touchpad Controller Replacement, Battery: step 1, image 1 of 1

    • Turn the laptop upside-down, with the handle facing away from you.

    Edit

  2. OLPC XO-4 Touch Touchpad Controller Replacement: step 2, image 1 of 2 OLPC XO-4 Touch Touchpad Controller Replacement: step 2, image 2 of 2

    • Pull the lock tabs towards the green outer edges of the laptop.

    • Hold the left lock tab in the unlock position until the battery is completely removed in the next step.

    Edit

  3. OLPC XO-4 Touch Touchpad Controller Replacement: step 3, image 1 of 2 OLPC XO-4 Touch Touchpad Controller Replacement: step 3, image 2 of 2

    • Lift up on the middle of the battery to remove it from the device.

    Edit

  4. OLPC XO-4 Touch Touchpad Controller Replacement, Keyboard: step 4, image 1 of 2 OLPC XO-4 Touch Touchpad Controller Replacement, Keyboard: step 4, image 2 of 2

    • Remove the two 2mm Phillips #1 screws from beneath the battery lock tabs.

    Edit

  5. OLPC XO-4 Touch Touchpad Controller Replacement: step 5, image 1 of 3 OLPC XO-4 Touch Touchpad Controller Replacement: step 5, image 2 of 3 OLPC XO-4 Touch Touchpad Controller Replacement: step 5, image 3 of 3

    • Flip the laptop over to its normal position.

    • Lift the two antennas on both sides to unlock the screen.

    • Open the laptop.

    Edit

  6. OLPC XO-4 Touch Touchpad Controller Replacement: step 6, image 1 of 2 OLPC XO-4 Touch Touchpad Controller Replacement: step 6, image 2 of 2

    • Be careful not to pull the keyboard too far because there is still a ribbon cable attached to the bottom.

    • Gently lift up on the back of the keyboard.

    • Pull the keyboard up far enough to expose the ribbon cable.

    Edit

  7. OLPC XO-4 Touch Touchpad Controller Replacement: step 7, image 1 of 2 OLPC XO-4 Touch Touchpad Controller Replacement: step 7, image 2 of 2

    • Gently lift up on the black connector to release the ribbon cable.

    • Gently pull the blue plastic tab up and away from the black connector.

    • Remove the keyboard from the laptop.

    Edit

  9. OLPC XO-4 Touch Touchpad Controller Replacement, Lower Case: step 8, image 1 of 2 OLPC XO-4 Touch Touchpad Controller Replacement, Lower Case: step 8, image 2 of 2

    • Close and flip the laptop over so you are looking at the battery compartment

    • Remove the five 4mm Phillips #1 screws from inside the battery compartment

    Edit

  10. OLPC XO-4 Touch Touchpad Controller Replacement: step 9, image 1 of 3 OLPC XO-4 Touch Touchpad Controller Replacement: step 9, image 2 of 3 OLPC XO-4 Touch Touchpad Controller Replacement: step 9, image 3 of 3

    • Flip the laptop over, showing the top of the device.

    • Open the laptop and rotate the screen ninety degrees.

    • Tilt the screen so the lower right corner of the screen is closer to the lower case.

    Edit

  11. OLPC XO-4 Touch Touchpad Controller Replacement: step 10, image 1 of 3 OLPC XO-4 Touch Touchpad Controller Replacement: step 10, image 2 of 3 OLPC XO-4 Touch Touchpad Controller Replacement: step 10, image 3 of 3

    • Push in and lift up on the keyboard edge of the white handle piece.

    • Pull the piece towards yourself to remove it from the laptop.

    Edit

  12. OLPC XO-4 Touch Touchpad Controller Replacement: step 11, image 1 of 1

    • Remove the four 4mm Phillips #1 screws attaching the green trim to the body of the computer.

    Edit

  13. OLPC XO-4 Touch Touchpad Controller Replacement: step 12, image 1 of 2 OLPC XO-4 Touch Touchpad Controller Replacement: step 12, image 2 of 2

    • Pry off the rear green trim piece.

    Edit

  14. OLPC XO-4 Touch Touchpad Controller Replacement: step 13, image 1 of 3 OLPC XO-4 Touch Touchpad Controller Replacement: step 13, image 2 of 3 OLPC XO-4 Touch Touchpad Controller Replacement: step 13, image 3 of 3

    • Be careful not to pull the bottom portion of the laptop completely off, as there is a cable connecting it to the laptop.

    • Slide the green trim pieces away from the screen.

    • This should release the entire bottom portion of the laptop.

    Edit

  15. OLPC XO-4 Touch Touchpad Controller Replacement: step 14, image 1 of 3 OLPC XO-4 Touch Touchpad Controller Replacement: step 14, image 2 of 3 OLPC XO-4 Touch Touchpad Controller Replacement: step 14, image 3 of 3

    • Unplug the cable from the mouse buttons controller to completely remove the lower frame from the device.

    Edit

  16. OLPC XO-4 Touch Touchpad Controller Replacement: step 15, image 1 of 2 OLPC XO-4 Touch Touchpad Controller Replacement: step 15, image 2 of 2

    • Rotate the entire lower assembly up slightly, and pull it away from the screen to free it from the screen hinge.

    • There may be some adhesive holding the cable to the metal plate. Gently pull the cable off of the plate if it is stuck.

    Edit

  17. OLPC XO-4 Touch Touchpad Controller Replacement, Mouse Buttons Controller: step 16, image 1 of 3 OLPC XO-4 Touch Touchpad Controller Replacement, Mouse Buttons Controller: step 16, image 2 of 3 OLPC XO-4 Touch Touchpad Controller Replacement, Mouse Buttons Controller: step 16, image 3 of 3

    • You should now be looking at the bottom of the lower case.

    • Remove the eight 4mm Phillips #1 screws attaching the green trim pieces to the lower frame.

    • Pry off the front and side trim pieces.

    Edit

  18. OLPC XO-4 Touch Touchpad Controller Replacement: step 17, image 1 of 1

    • Remove the two 4mm Phillips #1 screws that attach the mouse buttons controller to the lower frame.

    Edit

  19. OLPC XO-4 Touch Touchpad Controller Replacement: step 18, image 1 of 3 OLPC XO-4 Touch Touchpad Controller Replacement: step 18, image 2 of 3 OLPC XO-4 Touch Touchpad Controller Replacement: step 18, image 3 of 3

    • Disconnect the ribbon cable attached to the keyboard compartment.

    • Unplug the ribbon cable between the touchpad and the mouse buttons controller.

    • Remove the mouse buttons controller from the device.

    Edit

  20. OLPC XO-4 Touch Touchpad Controller Replacement, Touchpad Controller: step 19, image 1 of 1

    • Remove the two 4mm Phillips screws that attach the metal plate to the touchpad assembly.

    • Be sure not to lose the silver magnet in the lower right corner of the touchpad assembly.

    Edit

  21. OLPC XO-4 Touch Touchpad Controller Replacement: step 20, image 1 of 3 OLPC XO-4 Touch Touchpad Controller Replacement: step 20, image 2 of 3 OLPC XO-4 Touch Touchpad Controller Replacement: step 20, image 3 of 3

    • Remove the silver contact tape from the metal plate.

    • Lift the metal plate off of the touchpad assembly.

    Edit
Conclusion

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

One other person completed this guide.

Author

with 6 other contributors

Theodore Tsanakas

Member since: 01/24/13

15 Reputation

1 Guide authored

Badges: 9

+6 more badges

Team

Cal Poly, Team 3-30, Amido Winter 2013 Member of Cal Poly, Team 3-30, Amido Winter 2013

CPSU-AMIDO-W13S3G30

3 Members

12 Guides authored

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