How to clean Samsung SGH-T639 keypad

Introduction

This guide contains photos that do not include pictures of the back cover or battery. However, the instructions have been adjusted to reflect this lack of visual aid.

What you need

Step 1 Battery

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Flip the phone over and take off the back cover
Note: These images do not contain the back cover or battery of the phone.

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Step 2

Use button to remove battery from the phone.
Note: These images do not contain the back cover or battery of the phone.

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Step 3 Motherboard

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How to clean Samsung SGH-T639 keypad, Motherboard: step 3, image 3 of 3

Tool used on this step:

Magnetic Project Mat

$19.95

Buy

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.

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Step 4

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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.

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Step 5

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Locate the connection point of black wire running from the microphone to the motherboard.
Carefully disconnect the gold connector from the motherboard using tweezers.

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Step 6

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Locate the red connector at the top of the motherboard.
Carefully lift and remove the connector from the motherboard using tweezers.

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Step 7

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Locate the gold connector that connects the screen to the motherboard.
Carefully disconnect the connector from the motherboard using tweezers.

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Step 8

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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.

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Step 9

Remove the motherboard from the cell phone.

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Step 10 Keypad

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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.

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Step 11

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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.