Samsung Galaxy Battery Cover Replacement (With Fingerprint Sensor)

Before you start

This repair guide will show you step-by-step how to use your newly purchased iTG® battery cover repair set to repair your 2017 or newer Samsung Galaxy smartphone.

In this guide we will be using the Samsung Galaxy S8 SM-G950F to demonstrate how the repair is performed. However as the repair procedure is the same, this guide can also be used with our battery cover repair sets for the Samsung Galaxy S8 PLUS, Note 8, A8, S9 and S9 PLUS. In theory this guide can also be applied to any future model of Samsung Galaxy smartphone where the fingerprint sensor is attached to the battery cover.

Please make sure all the parts of the supplied repair set are included. If you find that there is something missing or damaged, please contact us before proceeding.

the repair procedure

Before starting with our repair instructions, we recommend first watching the following repair video made by Youtube user CellularProz. While not exactly the same as our procedure, this will give you a quick overview of the steps involved as well showing you that it is possible to complete the repair quickly and easily.

You Will Need
  • The iTG® repair set for the correct model smartphone.
  • Heat gun / hair dryer / our UFiX Heat Bag (available here) or other way to heat the rear cover.
  • Patience (usual repair time: 15 – 30 mins).
You May Also Need
  • Infrared thermometer (available here).
  • Suction Cup Pliers (available here).
  • Rubber gloves.
  • Tweezers.
Let’s Begin!
Step 1

Remove both the SIM card and microSD memory card if present. To do this, insert the card tray removal tool into the small hole on the side of the phone. Press gently and the tray should pop out.

Remove the tray.

Step 2

Using your selected heating method such as a heat gun or our UFiX Heat Bag, heat the surface of the battery cover to approximately 60-70°C. Make sure to concentrate the heat along the outer edges of the phone as this is where the cover is glued to the frame. This will loosen the glue but should not damage the electronics.

If you have one available, use an infrared thermometer (recommended) to check the temperature. If you don’t have a thermometer, heat the cover until you cannot touch it with your bare finger for more than a few seconds. If using a heat gun this will take at least a few minutes, with a hair dryer it will take even longer.

You must be careful when applying heat. If the battery cover is heated up too much it could damage the battery or the electronics underneath. It is better to apply heat conservatively to begin with and then apply additional heat if the cover will not separate easily.

Step 3

Using the supplied suction cup and starting at the bottom edge, try to pull the battery cover away from the phone.


Once you have made a small gap, insert the supplied iTG® metal opening tool. Very carefully start to work along the bottom edge to separate the cover.


Once there is enough space, insert the edge of the supplied iTG® separator card and begin to slide it along the edge to separate the cover from the phone.

You may need to reapply heat to the cover while you work, as the glue will cool down and make the cover more difficult to separate.

Do not insert the card too far in especially towards the top of the phone. Here it is possible to damage the fingerprint sensor flex cable if you are not careful.

Step 4

Once you have separated enough of the cover, you should now be able to lift it away from the phone.

Start from the left hand side of the rear cover and slowly open it like a book. The fingerprint sensor flex cable should detach itself from the motherboard.

Step 5

Remove any adhesive tape that may still be attached to the frame of the phone. In our case the battery cover came away with the adhesive still attached.

Step 6

The fingerprint sensor must now be transferred to the new battery cover.

To remove the sensor, insert the corner of the separator card between the sensor and the cover.

If the sensor is difficult to remove, apply a little heat to the back of the sensor to soften the adhesive.

The sensor should now come away in one piece with the flex cable attached.

Remove any adhesive still attached to the sensor.

Remove the green plastic covering the sensor adhesive on your new battery cover and reinstall the sensor.

At this point you can also remove the protective plastic covering the camera lens.


It is now finally time to install your new battery cover!

Peal back and remove all of the protective plastic covering the 3M adhesive.


Now place the right edge of the cover onto the phone. As you lower the cover into position, use your finger to reconnect the fingerprint sensor flex cable to the motherboard.

This is a bit fiddly and may take a few attempts.

Step 8

With the battery cover firmly in place, reinstall the SIM card and microSD card (the reverse of the removal procedure).

Step 9

Remove any remaining protective plastic from the cover.

Now pat yourself on the back for a job well done 🙂

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