Sony Xperia Z2 battery repair guide

The battery life is low. Your Xperia keeps crashing or won’t charge.

In this guide, we show you how to replace your Xperia Z2’s defective battery. This repair can help if your Sony Xperia Z2 crashes during heavy use because the voltage temporarily drops, you can no longer charge it or turn it on, or the battery life is very low.

Required tools

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 €15.99 on Amazon
Menda ESD Spudger

Menda ESD Spudger

You need a flat plastic prying tool to disconnect the various plugs and connectors.
from €26.38 on Amazon
Steel Laboratory Spatula

Steel Laboratory Spatula

You need a flat and sturdy prying tool to disconnect glued parts.
on Amazon
Phillips PH00 screwdriver

Phillips PH00 screwdriver

You need the right screwdriver for removing PH00 screws.
from €10.84 on Amazon

Required replacement part

Sony Xperia Z2 Battery

Sony Xperia Z2 Battery

from €14.90 on Amazon

Show all replacement parts for the Xperia Z2

Getting started with the repair of your Xperia Z2

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

5 steps

Removing the back cover
The back of the Sony Xperia Z2’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.

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.

Carefully lift the back cover while using a suction cup.

As soon as a little gap opens up, use the plastic pick to avoid damaging the aluminum.
Inserting the pick
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.

The back cover is glued to the entire outer edge of the Sony Xperia Z2. Move the pick once around the entire phone.

Once you’ve detached all the glue, you can carefully lift the back cover.

Removing the battery
First, remove the clear strip of plastic over the battery connection cable.

Insert the flat end of the spudger very slightly below the contact and lift it up. Make sure you don’t break off the resistors that are soldered onto the logic board.

Detach the cable set from the silver plate. It’s lightly glued in place.

Remove the two Phillips screws.
2 x 3.3 mm Phillips screws

Then remove the battery.
Installing the battery
Put in the battery and screw it in place.
2 x 3.3 mm Phillips screws
Reconnect the connector and press the cable set onto the silver cover.

Stick the clear strip of plastic on the battery connection cable.
Attaching the back cover
As a last step, you have to attach the back cover again.

The old glue is usually still sticky enough.

Put the back cover back on, heat it slightly and then use a little force to press it onto the smartphone for a while.