LG CU400 Bottom Half Assembly Replacement

Introduction

This guide will help you disassemble the bottom half of the phone. By completing this you will gain access to the motherboard and charging port for replacement.

What you need

Step 1 Battery

LG CU400 Bottom Half Assembly Replacement, Battery: step 1, image 1 of 2

LG CU400 Bottom Half Assembly Replacement, Battery: step 1, image 2 of 2

Push the button labeled 'PUSH' on the rear cover.

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Step 2

LG CU400 Bottom Half Assembly Replacement: step 2, image 3 of 3

Slide the rear cover towards you.

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Step 3

To remove the battery, grasp the top front edge of the battery and pull the battery away from the phone.
When installing the new battery, have the metal contacts of the phone match up with the metal contacts of the battery.

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Step 4 Bottom Half Assembly

LG CU400 Bottom Half Assembly Replacement, Bottom Half Assembly: step 4, image 1 of 2

LG CU400 Bottom Half Assembly Replacement, Bottom Half Assembly: step 4, image 2 of 2

Remove the sim card by sliding the card out from under the retainer using either your fingers or a spudger.

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Step 5

Remove the rubber covers in the highlighted locations using a metal spudger.

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Step 6

Remove the six 3mm #000 flat Phillips head screws from the back of the phone using a Phillips #000 Screwdriver.

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Step 7

Remove the headphone jack cover with your finger or metal spudger.

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Step 8

LG CU400 Bottom Half Assembly Replacement: step 8, image 3 of 3

Insert the metal spudger between the keypad assembly and back cover assembly and pry the two assemblies apart.
Pry gently as to not break the plastic clips that hold the two assemblies together.
Work your way around the perimeter of the phone with the metal spudger to separate the two assemblies.