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How to clean Samsung SGH-T639 keypad

What you need

  1. How to clean Samsung SGH-T639 keypad, Battery: step 1, image 1 of 1
    • Flip the phone over and take off the back cover

    • Note: These images do not contain the back cover or battery of the phone.

  2. How to clean Samsung SGH-T639 keypad: step 2, image 1 of 1
    • Use button to remove battery from the phone.

    • Note: These images do not contain the back cover or battery of the phone.

  3. How to clean Samsung SGH-T639 keypad, Motherboard: step 3, image 1 of 3 How to clean Samsung SGH-T639 keypad, Motherboard: step 3, image 2 of 3 How to clean Samsung SGH-T639 keypad, Motherboard: step 3, image 3 of 3
    Tool used on this step:
    Magnetic Project Mat
    $19.95
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    • Locate the six (4mm) screws on the back casing of the phone.

    • Unscrew each one using a phillips head #000 screwdriver.

    • Place screws on magnetic mat.

  4. How to clean Samsung SGH-T639 keypad: step 4, image 1 of 3 How to clean Samsung SGH-T639 keypad: step 4, image 2 of 3 How to clean Samsung SGH-T639 keypad: step 4, image 3 of 3
    • Starting at the top of the phone, carefully insert plastic opening device into the seam.

    • Carefully slide device along the seam and around the corners of the phone until the back is separated from the front.

    • Note: Some force must be exerted. Be careful when taking off panel. Go slow.

    • Note: The volume button may separate from the case, this is normal. It is not broken.

  5. How to clean Samsung SGH-T639 keypad: step 5, image 1 of 3 How to clean Samsung SGH-T639 keypad: step 5, image 2 of 3 How to clean Samsung SGH-T639 keypad: step 5, image 3 of 3
    • Locate the connection point of black wire running from the microphone to the motherboard.

    • Carefully disconnect the gold connector from the motherboard using tweezers.

  6. How to clean Samsung SGH-T639 keypad: step 6, image 1 of 3 How to clean Samsung SGH-T639 keypad: step 6, image 2 of 3 How to clean Samsung SGH-T639 keypad: step 6, image 3 of 3
    • Locate the red connector at the top of the motherboard.

    • Carefully lift and remove the connector from the motherboard using tweezers.

  7. How to clean Samsung SGH-T639 keypad: step 7, image 1 of 3 How to clean Samsung SGH-T639 keypad: step 7, image 2 of 3 How to clean Samsung SGH-T639 keypad: step 7, image 3 of 3
    • Locate the gold connector that connects the screen to the motherboard.

    • Carefully disconnect the connector from the motherboard using tweezers.

  8. How to clean Samsung SGH-T639 keypad: step 8, image 1 of 3 How to clean Samsung SGH-T639 keypad: step 8, image 2 of 3 How to clean Samsung SGH-T639 keypad: step 8, image 3 of 3
    • Start at the bottom of the motherboard and gently pry it from the back of the cell phone using the plastic opening tool.

    • Lift the motherboard from the cell phone.

  9. How to clean Samsung SGH-T639 keypad: step 9, image 1 of 1
    • Remove the motherboard from the cell phone.

  10. How to clean Samsung SGH-T639 keypad, Keypad: step 10, image 1 of 2 How to clean Samsung SGH-T639 keypad, Keypad: step 10, image 2 of 2
    • Locate the two black, rubber tabs near the top of the back of the phone.

    • Locate the one black, rubber tab near the base of the phone.

  11. How to clean Samsung SGH-T639 keypad: step 11, image 1 of 3 How to clean Samsung SGH-T639 keypad: step 11, image 2 of 3 How to clean Samsung SGH-T639 keypad: step 11, image 3 of 3
    • Using tweezers, pry each of the tabs open.

    • Tuck each tab behind the white notch.

    • By tucking the tabs behind each notch. This allows improves the ease of removing the keypad.

  12. How to clean Samsung SGH-T639 keypad: step 12, image 1 of 3 How to clean Samsung SGH-T639 keypad: step 12, image 2 of 3 How to clean Samsung SGH-T639 keypad: step 12, image 3 of 3
    • Flip phone over to make the keypad visable.

    • Carefully lift keypad around the edges.

    • Remove keypad from the cell phone.

  13. How to clean Samsung SGH-T639 keypad, How to clean Samsung SGH-T639 keypad: step 13, image 1 of 1
    • Obtain device cleaner and a cleaning pad.

  14. How to clean Samsung SGH-T639 keypad: step 14, image 1 of 3 How to clean Samsung SGH-T639 keypad: step 14, image 2 of 3 How to clean Samsung SGH-T639 keypad: step 14, image 3 of 3
    • Spray the front of the keypad with device cleaner.

    • Clean front of keypad using cleaning cloth.

  15. How to clean Samsung SGH-T639 keypad: step 15, image 1 of 3 How to clean Samsung SGH-T639 keypad: step 15, image 2 of 3 How to clean Samsung SGH-T639 keypad: step 15, image 3 of 3
    • Flip keypad over.

    • Spray back of keypad with device cleaner.

    • Clean back of keypad with cleaning cloth.

Conclusion

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

Yi Ren

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