The screen is broken or stays black.

In this guide, we show you how to replace the display unit of your Galaxy S9. You need to replace it if the glass is cracked, the touchscreen no longer responds to touch, or the display stays black or flickers.

For this repair, we install a new display unit.

Click the small Play button in the top right of an image to play a video for each step. You can also find a full video for this repair at the top of this page.

Required tools

  • Flat Picks

    Flat Picks

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

    from €11.95 on Amazon
  • iFlex Opening Tool

    iFlex Opening Tool

    Opening your smartphone can be a very delicate operation, especially if the glue is very persistent. The blade of the flexible but sturdy iFlex measures just 0.15 mm, so it fits in even the smallest gaps, such as between the screen and the frame. The practical iFlex is made of stainless steel and sits comfortably in the hand. This makes it the perfect assistant for every smartphone repair.

    from €10.95 on Amazon
  • iPlastix Opening Tool

    iPlastix Opening Tool

    Do you want to open your smartphone or lever out large parts like the battery? Then the iPlastix with its large blade will help you. The practical assistant is made of flexible, especially sturdy plastic and lies comfortably in the hand. Thanks to its design, you can even get into smaller gaps, for example to lift the screen or to prevent it from sticking together again.

    on Amazon
  • Tweezers

    Tweezers

    We recommend using tweezers to remove screws and various small parts from your device.

    on Amazon
  • Plastic prying tool

    Plastic prying tool

    You need a flat plastic prying tool to disconnect the various plugs and connectors.

    from €14.99 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

Show all replacement parts for the Galaxy S9 

Getting started with the repair of your Galaxy S9

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

33 steps
  1. Switching off your device

    Galaxy S9 - Switching off your device 01
    Galaxy S9 - Switching off your device 02
    Galaxy S9 - Switching off your device 03
    Galaxy S9 - Switching off your device 04
    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 device and wait until the screen goes blank.

    Klick the small Play button in the top right of an image to play a video for each step.

  2. Remove back cover

    Galaxy S9 - Remove back cover 01
    Galaxy S9 - Remove back cover 02
    Galaxy S9 - Remove back cover 03
    Galaxy S9 - Remove back cover 04
    Galaxy S9 - Remove back cover 05
    Galaxy S9 - Remove back cover 06
    Used tools
    Heat gun
    iFlex Opening Tool
    VAKUPLASTIC Suction Cup

    To loosen the back cover, use a heat gun or an ordinary hair dryer. Warm glue is easier to loosen, allowing you to remove the back cover. 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 suction cup on the bottom of the back cover.
    2. Press a flat tool between the back cover and the frame and pull on the suction cup.

    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.

    Once the back glass is loosened everywhere, you should only lift it slightly, because the fingerprint sensor, which is located under the camera, still connects the back glass and the circuit board with a very short cable. You will loosen this in the next step.

    Used tools
    iFlex Opening Tool
    VAKUPLASTIC Suction Cup
  3. Disconnect fingerprint sensor

    Galaxy S9 - Disconnect fingerprint sensor 01
    Galaxy S9 - Disconnect fingerprint sensor 02
    Galaxy S9 - Disconnect fingerprint sensor 03
    Galaxy S9 - Disconnect fingerprint sensor 04
    Used tools
    Pry Tool
    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.
    Used tools
  4. Remove midframe

    Galaxy S9 - Remove midframe 01
    Galaxy S9 - Remove midframe 02
    Galaxy S9 - Remove midframe 03
    Galaxy S9 - Remove midframe 04
    Used tools
    Wiha PicoFinish Phillips Screwdriver PH00
    Piergiacomi Tweezers 2a SA ESD
    • 10 × 4.0 mm Phillips

    Then remove all the equally long Phillips screws from the logic board cover and store them together.

    This phone has only two different screw lengths. If some screws don't come off immediately, you can also use a pair of tweezers.

    1. The logic board cover with the NFC tag is latched in at the top.
    2. Pry it up a little and then take it out.
    Used tools
    Wiha PicoFinish Phillips Screwdriver PH00
    Piergiacomi Tweezers 2a SA ESD
  5. Disconnect battery

    Galaxy S9 - Disconnect battery 01
    Galaxy S9 - Disconnect battery 02
    Galaxy S9 - Disconnect battery 03
    • Battery connector
    1. Now the battery connector is free.
    2. To avoid short circuits during the repair, disconnect the battery.
  6. Remove the speaker unit

    Galaxy S9 - Remove the speaker unit 01
    Galaxy S9 - Remove the speaker unit 02
    Galaxy S9 - Remove the speaker unit 03
    Galaxy S9 - Remove the speaker unit 04
    • 5 × 4.0 mm Phillips

    Now remove the speaker. These screws are also equally long.

    1. Lift the speaker a little using tweezers and then remove it.
  7. Remove front camera

    Galaxy S9 - Remove front camera 01
    Galaxy S9 - Remove front camera 02
    Galaxy S9 - Remove front camera 03
    Galaxy S9 - Remove front camera 04
    Galaxy S9 - Remove front camera 05
    • Connector
    1. Now disconnect the front camera connector using a spudger.
    2. Pry it up from the free side where there are no PCB components.
    3. Then take the camera out of its holder.
  8. Remove SIM tray

    Galaxy S9 - Remove SIM tray 01
    Galaxy S9 - Remove SIM tray 02
    Galaxy S9 - Remove SIM tray 03
    1. Now remove the SIM tray.
    2. The best way is to use a SIM tool or a paper clip.
    3. Then pull out the SIM tray.
  9. Unplug connectors

    Galaxy S9 - Unplug  connectors 01
    Galaxy S9 - Unplug  connectors 02
    Galaxy S9 - Unplug  connectors 03
    Galaxy S9 - Unplug  connectors 04
    Galaxy S9 - Unplug  connectors 05
    Galaxy S9 - Unplug  connectors 06
    Galaxy S9 - Unplug  connectors 07
    • Connector
    • Antenna Plug
    1. Now disconnect the different plugs from the logic board.
    2. Twist the spudger gently. Don't use it like a crowbar, or you may damage the logic board.
    3. There are small parts next to the connectors that break easily.
    4. Then disconnect the button plugs of the antenna cables.
    5. Grab the cable with the tweezers, not on the plug itself.
    6. Disconnect the plug with a twist of the tweezers.

  10. Remove logic board

    Galaxy S9 - Remove logic board 01
    Galaxy S9 - Remove logic board 02
    Galaxy S9 - Remove logic board 03
    Galaxy S9 - Remove logic board 04
    Galaxy S9 - Remove logic board 05
    • 1 × 3.4 mm Phillips
    1. Now remove the single screw on the logic board.
    2. Before removing the logic board, make sure that all connectors are bent aside and don't get stuck.
    3. The bottom side of the logic board is still connected to the USB board. Fold up the logic board and flick off the connector using a spudger.
    4. Then put the logic board aside.
    There's a small plastic pin in the opening of the SIM tray. Make sure it doesn't fall out.
  11. Remove sensor cable

    Galaxy S9 - Remove sensor cable 01
    Galaxy S9 - Remove sensor cable 02
    Galaxy S9 - Remove sensor cable 03
    Galaxy S9 - Remove sensor cable 04
    1. Use tweezers to loosen the glued on sensor cable unit.
    2. The cable unit is latched in at the top. Lift it up a little and unglue the copper tape.

  12. Remove earpiece

    Galaxy S9 - Remove earpiece 01
    Galaxy S9 - Remove earpiece 02
    Galaxy S9 - Remove earpiece 03
    Galaxy S9 - Remove earpiece 04
    1. Use a flat tool to unglue the earpiece – if necessary.
    2. If your spare part comes with a new earpiece, you don't have to reuse the old earpiece.
  13. Remove vibration motor

    Galaxy S9 - Remove vibration motor 01
    Galaxy S9 - Remove vibration motor 02
    Galaxy S9 - Remove vibration motor 03
    Galaxy S9 - Remove vibration motor 04
    1. Then remove the vibration motor, which is also glued.
    2. Pry out the motor gently using a flat tool.
  14. Remove audio port

    Galaxy S9 - Remove audio port 01
    Galaxy S9 - Remove audio port 02
    Galaxy S9 - Remove audio port 03
    Galaxy S9 - Remove audio port 04
    Galaxy S9 - Remove audio port 05
    • 1 × 3.4 mm Phillips
    • Connector
    1. Next remove the audio jack. It's fastened with a screw.
    2. Loosen the screw and then unplug the connector.
    3. There's a recess in the upper corner, where you can pry out the audio port.
  15. Remove USB board

    Galaxy S9 - Remove USB board 01
    Galaxy S9 - Remove USB board 02
    Galaxy S9 - Remove USB board 03
    Galaxy S9 - Remove USB board 04
    Galaxy S9 - Remove USB board 05
    Galaxy S9 - Remove USB board 06
    • 4 × 3.4 mm Phillips
    1. Remove the other screws of the USB board. They're all the same length.
    2. Remove the white and blue antenna cable from its guide.
    3. The cable of the USB board is glued to the frame. Use a spatula to unglue it.
    4. Then pick up the USB board and gradually release it using the spatula.
    5. Now take out the whole USB board.
  16. Remove battery

    Galaxy S9 - Remove battery 01
    Galaxy S9 - Remove battery 02
    Galaxy S9 - Remove battery 03
    Galaxy S9 - Remove battery 04
    Galaxy S9 - Remove battery 05
    Galaxy S9 - Remove battery 06
    Galaxy S9 - Remove battery 07

    The battery glue is very strong, so you should use hot air again.

    Never heat the battery directly and don't bend it.

    The battery is glued around the outer edges but not at the center.

    1. Apply the hot air from the display side.
    2. We recommend running a flat tool, such as the iFlex, all around the battery.
    3. Now take out the battery.
    Be careful not to damage the battery. Take your time and heat the glue several times.
  17. The right tools for your repair

    With the right tools, you will succeed in any repair. In our store you will find a large selection of professional quality tools.
    VIEW NOW
  18. Prepare new display

    Galaxy S9 - Prepare new display 01
    Galaxy S9 - Prepare new display 02
    • Speaker gasket
    1. Now take the new display and compare it to the old one. If necessary, you have to reuse some gaskets or holders.
    2. Remove the backing films from the sticker surfaces, so you can attach the front camera or sensors, for example.
  19. Insert battery

    Galaxy S9 - Insert battery 01
    Galaxy S9 - Insert battery 02
    Galaxy S9 - Insert battery 03
    1. Put the battery in the display unit.
    2. Press the battery firmly into the frame so the glue will stick better.
  20. Insert USB board

    Galaxy S9 - Insert USB board 01
    Galaxy S9 - Insert USB board 02
    Galaxy S9 - Insert USB board 03
    Galaxy S9 - Insert USB board 04
    Galaxy S9 - Insert USB board 05
    Galaxy S9 - Insert USB board 06
    • 4 × 3.4 mm Phillips

    Now insert the USB board.

    1. Take the USB board, place it in the display unit and press it in.
    2. Make sure that all parts are correctly seated.
    3. Stick the flex cable back to the frame.
    4. Then put the antennas in their holder. Start with the blue antenna.
    5. Then fasten the USB board's screws.

  21. Insert audio port

    Galaxy S9 - Insert audio port 01
    Galaxy S9 - Insert audio port 02
    Galaxy S9 - Insert audio port 03
    Galaxy S9 - Insert audio port 04
    Galaxy S9 - Insert audio port 05
    • 1 × 3.4 mm Phillips
    • Connector
    1. Insert the audio jack and press it in.
    2. Attach the connector and fasten the screw.
  22. Insert the vibration motor

    Galaxy S9 - Insert the vibration motor 01
    Galaxy S9 - Insert the vibration motor 02
    1. Put the vibration motor in the little round opening on the left side of the case.
    2. Use your fingers to press the motor firmly into place.
  23. Insert sensor cable

    Galaxy S9 - Insert sensor cable 01
    Galaxy S9 - Insert sensor cable 02
    Galaxy S9 - Insert sensor cable 03
    Galaxy S9 - Insert sensor cable 04
    1. Insert the sensor cable into the case. Make sure the cable is sitting right.
    2. Press the sensor with your finger so the glue will stick.
  24. Insert earpiece

    Galaxy S9 - Insert earpiece 01
    Galaxy S9 - Insert earpiece 02
    1. Put the earpiece back in the case.
    2. Press it on a little so the glue will stick better.
  25. Insert mainboard

    Galaxy S9 - Insert mainboard 01
    Galaxy S9 - Insert mainboard 02
    Galaxy S9 - Insert mainboard 03
    Galaxy S9 - Insert mainboard 04
    Galaxy S9 - Insert mainboard 05
    • 1 × 3.4 mm Phillips
    1. Take the logic board and plug in the connector at the bottom.
    2. Now you slowly fold the logic board into the device.
    3. Make sure you don't squeeze in any cables.
    4. Bend all antennas and connectors to the side.
    5. Press the logic board in to make it click into place.
    6. Then fasten the single screw of the logic board.
  26. Insert SIM tray

    Galaxy S9 - Insert SIM tray 01
    Galaxy S9 - Insert SIM tray 02
    1. Now insert the SIM tray.

    If it gets stuck, the logic board may not be sitting right.

  27. Attach connectors

    Galaxy S9 - Attach connectors 01
    Galaxy S9 - Attach connectors 02
    Galaxy S9 - Attach connectors 03
    Galaxy S9 - Attach connectors 04
    • Connector
    • Antenna plug

    Now attach all the plugs.

    1. You can position the antenna plugs with tweezers and then click them on.
    2. Also attach the connectors for the display and the volume buttons.
    3. All connectors engage with a click. If not, remove the connector and try again.

  28. Insert front camera

    Galaxy S9 - Insert front camera 01
    Galaxy S9 - Insert front camera 02
    Galaxy S9 - Insert front camera 03
    Galaxy S9 - Insert front camera 04
    • Connector
    1. Insert the front camera and attach its connector.
  29. Install speaker unit

    Galaxy S9 - Install speaker unit 01
    Galaxy S9 - Install speaker unit 02
    Galaxy S9 - Install speaker unit 03
    Galaxy S9 - Install speaker unit 04
    • 5 × 4.0 mm Phillips
    1. Then place the speaker back over the USB board, press it in and screw it tight.
    2. Make sure it's latched in at the bottom.
  30. Connect battery

    Galaxy S9 - Connect battery 01
    Galaxy S9 - Connect battery 02
    • Battery connector
    1. Connect the battery connector.
  31. Insert midframe

    Galaxy S9 - Insert midframe 01
    Galaxy S9 - Insert midframe 02
    Galaxy S9 - Insert midframe 03
    Galaxy S9 - Insert midframe 04
    • 10 × 4.0 mm Phillips
    1. Then attach the midframe with the NFC tag.
    2. Latch it in and press it in all around.
    3. Then fasten all the screws again.
  32. Connect fingerprint sensor

    Galaxy S9 - Connect fingerprint sensor 01
    Galaxy S9 - Connect fingerprint sensor 02
    Galaxy S9 - Connect fingerprint sensor 03
    Galaxy S9 - Connect fingerprint sensor 04
    Galaxy S9 - Connect fingerprint sensor 05
    • Fingerprint connector
    1. Before you put the back cover back on the case, reconnect the fingerprint sensor.
    2. Position the back cover over the device and lift it slightly so that you have access to the connector. Keep the back glass as still and close to the device as possible.
    3. You can use a plastic tool, such as a spudger, to reach the connector and push it down. Alternatively, you can use a longer tool like ESD tweezers or the ESD spudger. Be patient and try to keep your hands as still as possible.

  33. Test the display

    Galaxy S9 - Test the display 01
    Galaxy S9 - Test the display 02
    Galaxy S9 - Test the display 03
    Galaxy S9 - Test the display 04
    Galaxy S9 - Test the display 05

    Test your device before you attach the back cover. Only attach the back cover loosely to test the display.

    1. Turn on the device and open the dialpad.
    2. Enter *#0*# to open the test menu.
    3. The test menu lets you check the display for pixel errors and calibrate the touch screen.
    4. Also check all other functions such as the camera, speaker, or status LED.
  34. Attach back cover

    Galaxy S9 - Attach back cover 01
    Galaxy S9 - Attach back cover 02
    Galaxy S9 - Attach back cover 03
    1. Before reattaching the back cover, check the glue. It should be sitting evenly on the back cover. You can remove any excess glue.
    2. Then press on the back cover.
    3. Heat the back cover again to bond the glue.
    4. You can press on the back cover with your fingers while the glue cools down.

    Please note that your smartphone's water ingress protection is no longer the same after you open it.

Ø 5 (12 Ratings)

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