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Lenovo Tab 4 TB-8504F Motherboard Replacement

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  1. Lenovo Tab 4 TB-8504F Motherboard Replacement, Battery: step 1, image 1 of 3 Lenovo Tab 4 TB-8504F Motherboard Replacement, Battery: step 1, image 2 of 3 Lenovo Tab 4 TB-8504F Motherboard Replacement, Battery: step 1, image 3 of 3

    • Start at the microSD slot.

    • Use the opening pick to slide underneath the back cover of the tablet.

    • Slide the opening pick around the tablet until the back cover is off.

    Edit

  2. Lenovo Tab 4 TB-8504F Motherboard Replacement: step 2, image 1 of 3 Lenovo Tab 4 TB-8504F Motherboard Replacement: step 2, image 2 of 3 Lenovo Tab 4 TB-8504F Motherboard Replacement: step 2, image 3 of 3

    • Remove the 8 screws with a Phillips #000 screwdriver [bit].

    • There is a screw under the blue "s" sticker.

    • Remove tape holding plate down.

    • Use precision tweezers or your fingers to remove plate.

    Edit

  3. Lenovo Tab 4 TB-8504F Motherboard Replacement: step 3, image 1 of 2 Lenovo Tab 4 TB-8504F Motherboard Replacement: step 3, image 2 of 2

    • Remove yellow tape.

    • Use a spudger or plastic opening tool to remove the battery's ribbon cable from the motherboard.

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  4. Lenovo Tab 4 TB-8504F Motherboard Replacement: step 4, image 1 of 3 Lenovo Tab 4 TB-8504F Motherboard Replacement: step 4, image 2 of 3 Lenovo Tab 4 TB-8504F Motherboard Replacement: step 4, image 3 of 3

    • Gently pull on the two stretch release adhesive strips. Do not pull up, pull away from battery.

    • Once the tabs are off, lift the battery up from the frame.

    • Do not bend or puncture the battery.

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  5. Lenovo Tab 4 TB-8504F Motherboard Replacement, MicroSD Card Reader: step 5, image 1 of 2 Lenovo Tab 4 TB-8504F Motherboard Replacement, MicroSD Card Reader: step 5, image 2 of 2

    • There is a yellow tape holding the microSD card reader connector. Use tweezers to hold down the tape.

    • Gently lift the tab on the microSD card reader's ZIF connector, and gently pull the ribbon cable free.

    Edit

  7. Lenovo Tab 4 TB-8504F Motherboard Replacement: step 6, image 1 of 2 Lenovo Tab 4 TB-8504F Motherboard Replacement: step 6, image 2 of 2

    • Lift the microSD card reader with tweezers or your fingers.

    Edit

  8. Lenovo Tab 4 TB-8504F Motherboard Replacement, Rear Camera: step 7, image 1 of 2 Lenovo Tab 4 TB-8504F Motherboard Replacement, Rear Camera: step 7, image 2 of 2

    • Use a spudger to lift the rear camera press-fit connector up and free.

    • Use tweezers to lift the rear camera out of the frame.

    Edit

  9. Lenovo Tab 4 TB-8504F Motherboard Replacement, Front Camera: step 8, image 1 of 2 Lenovo Tab 4 TB-8504F Motherboard Replacement, Front Camera: step 8, image 2 of 2

    • Using tweezers, lift the yellow tape hiding the front camera.

    • Disconnect the front camera's connector from the motherboard using tweezers.

    Edit

  10. Lenovo Tab 4 TB-8504F Motherboard Replacement, Motherboard: step 9, image 1 of 2 Lenovo Tab 4 TB-8504F Motherboard Replacement, Motherboard: step 9, image 2 of 2

    • Use tweezers to pull screen digitizer cable from the motherboard.

    Edit

  11. Lenovo Tab 4 TB-8504F Motherboard Replacement: step 10, image 1 of 1

    • Desolder the two top speaker wires from the motherboard.

    • Be careful as the soldering iron is hot! Improper handling can result in severe burns.

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  12. Lenovo Tab 4 TB-8504F Motherboard Replacement: step 11, image 1 of 3 Lenovo Tab 4 TB-8504F Motherboard Replacement: step 11, image 2 of 3 Lenovo Tab 4 TB-8504F Motherboard Replacement: step 11, image 3 of 3

    • Desolder the black and red speaker wires from the motherboard.

    Edit

  13. Lenovo Tab 4 TB-8504F Motherboard Replacement: step 12, image 1 of 1

    • Use a Phillips #000 screwdriver to remove the two screws that secure the speaker to the motherboard.

    Edit

  14. Lenovo Tab 4 TB-8504F Motherboard Replacement: step 13, image 1 of 2 Lenovo Tab 4 TB-8504F Motherboard Replacement: step 13, image 2 of 2

    • Lift motherboard from the tablet.

    • Using your hand, you can separate the top speaker from the motherboard.

    Edit
Conclusion

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

3 other people completed this guide.

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