How to fix no image/black screen issue in Sony Xperia Z3

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Apr 13, 2021 - 10:21:58

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Introduction

If your Sony Xperia Z3 smartphone shows no image but the backlight is working, there may be a problem with the phone’s logic board. This problem can occur because of failed screen replacement attempts. Use this guide to repair your device.

Alternatively, see this Sony Xperia Z3 no image after screen replacement YouTube video for help micro-soldering the logic board.

What you need

Video Overview

Sony Z3 no image after screen replacement only backlight Hardware Repair

Step 1 Back Cover

How to fix no image/black screen issue in Sony Xperia Z3, Back Cover: step 1, image 1 of 3

How to fix no image/black screen issue in Sony Xperia Z3, Back Cover: step 1, image 2 of 3

How to fix no image/black screen issue in Sony Xperia Z3, Back Cover: step 1, image 3 of 3

Heat the back cover of your Xperia Z3 to loosen the adhesive underneath.
If you use an iOpener, follow these instructions for use.
Lift up the back cover with a suction handle and put an opening pick in the gap.
Move the pick carefully around the edges to loosen the adhesive on every side of the phone.
Don't put the pick in too deep under the back cover to not damage any parts inside the phone.

Step 2

Tool used on this step:

Tweezers

$4.99

Buy

There are two adhesive strips in the center of the phone connecting the rear case to the battery, you'll need to remove them to open the phone.
When the edges of the cover are free from adhesive, tilt it to allow access to the battery tabs.
Use tweezers to pull the two black adhesive strips out of the phone but don't pull just yet.

Step 3

Tool used on this step:

Plastic Cards

$2.99

Buy

Gently pull out both of the adhesive tabs out of the phone, parallel to the rear cover.
If the adhesive tabs break, try to use a thin flat plastic tool such as a plastic card to remove the last of the adhesive. If the adhesive is stubborn, heat it with an iOpener or hair dryer and pry again.