Sony Xperia Z3 - Replacing the back cover

The back cover is damaged.

  • Xperia Z3
  • 3 Steps
  • Easy
  • 15 min.
Go to the guide

Introduction

In this guide, we show you how to replace your Sony Xperia Z3’s defective back cover. This repair can help if your back cover is cracked or scratched.

Required tools

  • Flache Plektren

    Flache Plektren

    You need a very flat tool such as a flat pick to pry out parts that are glued in place.

    €1.00 at the iDoc store
  • Heat gun

    Heat gun

    You can use a heat gun to heat parts that are glued on so they’re easier to remove. In most cases, you can also use a hairdryer.

    from €14.99 on Amazon
  • Suction cup

    Suction cup

    A suction cup is perfect for lifting smooth surfaces such as displays or rear glass panels.

    €2.00 at the iDoc store

Required replacement part

Show all replacement parts for the Xperia Z3 

Replacement parts and tools for this repair

Our tools plus the right spare part help you fix your device easily.

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Getting started

If you get stuck or have questions, you can post a comment for each step. We’d be happy to help.

3 steps
  1. Removing the back cover

    Xperia Z3 - Removing the back cover 01
    Xperia Z3 - Removing the back cover 02
    1. The back of the Sony Xperia Z3’s enclosure is glued firmly in place. To detach it, you have to constantly heat it with a heat gun so the glue will soften. Then you have to insert a plastic pick into the gap between the frame and the glass to detach the adhesive.
    2. The gap between the aluminum frame and the glass is very small. We recommend that you use a very flat, sturdy object to get between them.
    3. Carefully lift the back cover while using a suction cup.
    4. As soon as a little gap opens up, use the plastic pick to avoid damaging the aluminum.
  2. Inserting the pick

    Xperia Z3 - Inserting the pick 01
    Xperia Z3 - Inserting the pick 02
    Xperia Z3 - Inserting the pick 03
    Xperia Z3 - Inserting the pick 04
    1. You should only insert the pick a few millimeters between the back cover and the frame to prevent damage inside the enclosure.
      The back cover is painted on the inside. Remove any adhesive residue carefully to avoid scratches or cracks.
    2. The back cover is glued to the entire outer edge of the Sony Xperia Z3. Move the pick once around the entire phone. There are also two removable adhesive strips attached to the battery. You can’t pull them off until you lift the top.
    3. Once you’ve detached all the glue, you can carefully lift the back cover.
  3. Attaching the back cover

    Xperia Z3 - Attaching the back cover 01
    1. As a last step, you have to attach the back cover again.
    2. The old glue is usually still sticky enough.
    3. Put the back cover back on, heat it slightly and then use a little force to press it onto the smartphone for a while.
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