Sanyo Katana Keypad Replacement

Introduction

Once the motherboard has been remove from the bottom of the phone, it is possible to peel the keyboard off the front of the motherboard to be replaced.

What you need

Step 1 Battery

Sanyo Katana Keypad Replacement, Battery: step 1, image 1 of 3

Sanyo Katana Keypad Replacement, Battery: step 1, image 2 of 3

Sanyo Katana Keypad Replacement, Battery: step 1, image 3 of 3

Place thumb on the tab located at the back of the phone and slide button towards your hand and away from phone.
While holding down the button, pull cover off with other hand.

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Step 2

Sanyo Katana Keypad Replacement: step 2, image 3 of 3

Use fingers to grip the battery and remove it from the phone.

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Step 3 Back Casing

Sanyo Katana Keypad Replacement, Back Casing: step 3, image 1 of 1

Using a spudger, remove the four rubber coverings on the lower back plate.

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Step 4

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Using a Tri-wing Y0 screwdriver, remove the four 4.4mm screws securing the back plate.

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Step 5

Sanyo Katana Keypad Replacement: step 5, image 3 of 3

Remove the lower back cover to reveal part of the motherboard and the circular speaker housed in the back cover plate.

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Step 6 Motherboard

Sanyo Katana Keypad Replacement, Motherboard: step 6, image 1 of 2

Sanyo Katana Keypad Replacement, Motherboard: step 6, image 2 of 2

Unscrew the 4.4mm screws at the top of the phone with the Tri-wing Y0 Screwdriver.

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Step 7

Sanyo Katana Keypad Replacement: step 7, image 3 of 3

For the following steps, the phone is shown closed to make manipulating the parts easier.
Using a spudger, remove the thin aluminum plate to access the upper motherboard.
This will most likely be difficult to pry off and will take a considerable amount of force. Stay clear of the piece to avoid injury when it comes free of the device.

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Step 8

Use the flat end of the spudger to remove two ribbon cables from the back of the motherboard.

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Step 9

Sanyo Katana Keypad Replacement: step 9, image 3 of 3

Open the phone and firmly hold the phone casing with one hand and push the motherboard out of the case with the other by pushing on the keys.
Once the keys are free from the casing, close the phone and pull the motherboard from the back of the phone the remainder of the way with your fingers.

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