Galaxy S9+ back cover replacement guide

The back of the enclosure is broken or scratched.

  • Galaxy S9+
  • 8 Steps
  • Medium
  • 30 min.
Go to the guide

Introduction

With this detailed step-by-step guide, you can easily replace the back cover of your Galaxy S9+ at home.

Removing the back cover is a rather cumbersome procedure, so plan enough time for it.

Do a backup before the repair, use a clean work surface and reserve enough time. If you are stuck at any point, just contact our live chat or write a comment on the corresponding step.

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
  • iFlex opening tool

    iFlex opening tool

    Die kleinen Teile in deinem Smartphone auseinanderzukriegen kann eine sehr große Arbeit bedeuten. Die Klinge des kompakten aber stabilen iFlex hat eine Dicke von nur 0,15 mm, sodass es auch in den kleinsten Spalten reinpasst, beispielsweise zwischen dem Display und dem Rahmen oder unter dem Logicboard. Das praktische iFlex ist aus hochwertigem rostfreiem Stahl und liegt gut in der Hand. Damit ist es der perfekte Helfer bei jeder Smartphone-Reparatur.

    €9.00 at the iDoc store
  • iPlastix

    iPlastix

    Dein Smartphone zu öffnen kann eine sehr empfindliche Angelegenheit sein. Die Klinge des biegsamen aber stabilen iPlastix hat eine Dicke von nur 0,15 mm, sodass es auch in den kleinsten Spalten reinpasst, beispielsweise zwischen dem Display und dem Rahmen oder unter dem Logicboard. Das praktische iPlastix ist aus biegsamem Kunststoff und liegt gut in der Hand. Damit ist es der perfekte Helfer bei jeder Smartphone-Reparatur.

    €9.00 at the iDoc store
  • Steel Laboratory Spatula

    Steel Laboratory Spatula

    You need a flat and sturdy prying tool to disconnect glued parts.

    €9.00 at the iDoc store

Required replacement part

  • Samsung Galaxy S9+ Back Cover Schwarz / Midnight Black

    Samsung Galaxy S9+ Back Cover Schwarz / Midnight Black

    Ist das Rückglas deines Galaxy S9+ verformt, gebrochen oder zerkratzt? Du kannst es ganz leicht austauschen!

    €46.00 at the iDoc store
Show all replacement parts for the Galaxy S9+ 

Replacement parts and tools for this repair

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

Samsung Galaxy S9+ Back Cover Blau / Coral Blue

Ist das Rückglas deines Galaxy S9+ verformt, gebrochen oder zerkratzt? Du kannst es ganz leicht austauschen!

Werkzeugset Samsung

Ganz gleich, welches Problem dein Handy hat - mit unserem Werkzeugset kannst du es bestimmt beheben. Dieses Reparaturset umfasst jeweils einen...

together for €95.00

Samsung Galaxy S9+ Back Cover Blau-Weiß / Polaris Blue

Ist das Rückglas deines Galaxy S9+ verformt, gebrochen oder zerkratzt? Du kannst es ganz leicht austauschen!

Werkzeugset Samsung

Ganz gleich, welches Problem dein Handy hat - mit unserem Werkzeugset kannst du es bestimmt beheben. Dieses Reparaturset umfasst jeweils einen...

together for €95.00

Samsung Galaxy S9+ Back Cover Gold / Sunrise Gold

Ist das Rückglas deines Galaxy S9+ verformt, gebrochen oder zerkratzt? Du kannst es ganz leicht austauschen!

Werkzeugset Samsung

Ganz gleich, welches Problem dein Handy hat - mit unserem Werkzeugset kannst du es bestimmt beheben. Dieses Reparaturset umfasst jeweils einen...

together for €95.00

Samsung Galaxy S9+ Back Cover Grau / Titanium Grey

Ist das Rückglas deines Galaxy S9+ verformt, gebrochen oder zerkratzt? Du kannst es ganz leicht austauschen!

Werkzeugset Samsung

Ganz gleich, welches Problem dein Handy hat - mit unserem Werkzeugset kannst du es bestimmt beheben. Dieses Reparaturset umfasst jeweils einen...

together for €95.00

Samsung Galaxy S9+ Back Cover Lila / Lilac Purple

Ist das Rückglas deines Galaxy S9+ verformt, gebrochen oder zerkratzt? Du kannst es ganz leicht austauschen!

Werkzeugset Samsung

Ganz gleich, welches Problem dein Handy hat - mit unserem Werkzeugset kannst du es bestimmt beheben. Dieses Reparaturset umfasst jeweils einen...

together for €95.00

Samsung Galaxy S9+ Back Cover Schwarz / Midnight Black

Ist das Rückglas deines Galaxy S9+ verformt, gebrochen oder zerkratzt? Du kannst es ganz leicht austauschen!

Werkzeugset Samsung

Ganz gleich, welches Problem dein Handy hat - mit unserem Werkzeugset kannst du es bestimmt beheben. Dieses Reparaturset umfasst jeweils einen...

together for €95.00

Getting started

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

8 steps
  1. Switching off your device

    Galaxy S9+ - Switching off your device 01
    Galaxy S9+ - Switching off your device 02
    1. Turn off your device by holding down the power button until the “Power off” option appears.
    2. Use your finger to confirm that you want to shut down your Galaxy S9+ and wait until the screen goes blank.
  2. Removing the back cover

    Galaxy S9+ - Removing the back cover 01
    Galaxy S9+ - Removing the back cover 02
    Galaxy S9+ - Removing the back cover 03
    Galaxy S9+ - Removing the back cover 04
    Galaxy S9+ - Removing the back cover 05
    1. The back cover’s really glued to the chassis. Heat the device evenly with hot air to soften the glue. A temperature of 60 - 80°C should be sufficient. As a rule of thumb, you should still be able to touch your device without it being uncomfortably hot.
    2. The easiest way to loosen the back cover is to use a flat and flexible tool such as the iPlastix or iFlex. You will also need several picks to unstick the back cover all around.
    1. Heat the spot where you start and place a flat tool between the back cover and the frame.

    The iPlastix is made of plastic, so it won't scratch the device. On the other hand, it's very soft and tricky to insert.

    Be extra careful, the back cover can break very easily. If necessary, apply the heat several times and try again. Removing the back cover might take half an hour. Take a little more time and work carefully to make sure you don't break anything.

    1. Once the tool is inserted, stick a pick into the gap to keep it open. Then run the tool around the entire edge to gradually loosen the glue.
    2. Then heat the next part and insert the picks one by one.

    The back cover glue is extra strong on the lower edge.

    1. Once the back cover is loosened, lift it very slightly. The fingerprint sensor underneath the camera is still connected with a cable.

    Use a suction cup to lift the glass if you can’t find anywhere to insert the tool

  3. Disconnecting the fingerprint sensor

    Galaxy S9+ - Disconnecting the fingerprint sensor 01
    Galaxy S9+ - Disconnecting the fingerprint sensor 02
    1. After detaching the back cover, carefully lift it and disconnect the fingerprint sensor using the spudger.
    2. Then you can completely remove the back cover and set it aside.
  4. Removing the fingerprint sensor

    Galaxy S9+ - Removing the fingerprint sensor 01
    Galaxy S9+ - Removing the fingerprint sensor 02
    Galaxy S9+ - Removing the fingerprint sensor 03
    1. Carefully slide in a steel spatula where the wireless charging coil is glued to the NFC antenna and pry off the contact.
    2. Now slowly remove the entire flex cable from the cover.

    If the cable is hard to remove, you can use a heat gun to soften the glue

    The images show the rear panel of a Galaxy S9. The Galaxy S9+ has the same glass panel.

  5. Preparing the new rear glass panel

    Galaxy S9+ - Preparing the new rear glass panel 01
    Galaxy S9+ - Preparing the new rear glass panel 02
    1. Remove all protective films from the display.
  6. Inserting the fingerprint sensor

    Galaxy S9+ - Inserting the fingerprint sensor 01
    Galaxy S9+ - Inserting the fingerprint sensor 02
    1. Insert the fingerprint sensor into its intended position in the back cover.
    2. Slightly press down the sensor to make it stick.

    The images show the rear panel of a Galaxy S9. The Galaxy S9+ has the same glass panel.

  7. Connect fingerprint sensor

    Galaxy S9+ - Connect fingerprint sensor 01
    Galaxy S9+ - Connect fingerprint sensor 02
    Galaxy S9+ - Connect fingerprint sensor 03
    1. Before attaching the back cover, plug in the fingerprint sensor connector.
    2. Use a plastic tool to reach the connector.
  8. Attaching the back cover

    Galaxy S9+ - Attaching the back cover 01
    1. Put the back cover back in its original position.
    2. Press the back cover on all over so the glue will stick.

    You can also heat your device with hot air and then clamp it or weight it down with a couple books so the glue will stick better.

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