Samsung Galaxy S4 - Replacing the display

The screen is broken or remains black

  • Galaxy S4
  • 25 Steps
  • Medium
  • 45 min.
Go to the guide

Introduction

In this repair guide, we show you how to replace your Samsung Galaxy S4’s defective display unit on your own. You need this repair if the glass is cracked, the touchscreen no longer responds to touch, or the LCD remains black or flickers.

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 €14.99 on Amazon
  • For storing screws

    For storing screws

    We recommend storing your screws so you don’t mix up the various screws and small parts.

    €10.00 at the iDoc store
  • Menda ESD Spudger

    Menda ESD Spudger

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

    €5.00 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
  • Phillips PH00 screwdriver

    Phillips PH00 screwdriver

    You need the right screwdriver for removing PH00 screws.

    €10.00 at the iDoc store

Required replacement part

Show all replacement parts for the Galaxy S4 

Replacement parts and tools for this repair

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

Werkzeugset Samsung

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

for €49.00

Getting started

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

25 steps
  1. Removing the back cover

    Galaxy S4 - Removing the back cover 01
    Galaxy S4 - Removing the back cover 02
    1. Insert the spudger into the gap next to the headphones. There are 16 clips on the outside under the back cover. You have to disconnect them by moving the spudger around the entire smartphone one time. Alternatively, you can detach the back cover using your fingernails.
    2. Then you can take off the back cover.
  2. Removing the battery

    Galaxy S4 - Removing the battery 01
    Galaxy S4 - Removing the battery 02
    1. If your Samsung Galaxy’s still on, turn it off by holding down the standby button for about three seconds and following the prompt on the display.
    2. Now use the spudger or your fingertip to lift the battery (see figure 1) and then remove it (see figure 2).
  3. Removing the SIM card

    Galaxy S4 - Removing the SIM card 01
    Galaxy S4 - Removing the SIM card 02
    1. Use the spudger or your finger to push the SIM card all the way into the slot (see figure 1). After a gentle click, the SIM card will come out (see figure 2).
    2. Now you can pull it out with your fingers.
    3. Repeat this process if you’ve installed a microSD card.
  4. Removing the plastic cover

    Galaxy S4 - Removing the plastic cover 01
    Galaxy S4 - Removing the plastic cover 02
    Galaxy S4 - Removing the plastic cover 03
    Galaxy S4 - Removing the plastic cover 04
    Galaxy S4 - Removing the plastic cover 05
    Galaxy S4 - Removing the plastic cover 06
    1. Remove the 9 Phillips screws that hold the plastic cover in place (see figure 1).
      9 x 4.0 mm Phillips screws
    2. Lift the cover and the chrome frame to remove them. The cover is attached to the display at 14 points. Insert the spudger between the chrome frame and the display. Start at the level of the Home button (see figure 2) and move the spudger once around the entire phone to detach all connections (see figures 3 and 4). Then you can remove the midframe.
    3. Test the new display.
      • Temporarily connect the new display assembly (see figure 5).
      • Put in the battery.
      • Start your Samsung Galaxy S4 (see figure 6) and check whether the LCD and touchscreen work properly. Make sure the connector is securely plugged in to the connection.
  5. Disconnecting the connectors

    Galaxy S4 - Disconnecting the connectors 01
    Galaxy S4 - Disconnecting the connectors 02
    Galaxy S4 - Disconnecting the connectors 03
    Galaxy S4 - Disconnecting the connectors 04
    Galaxy S4 - Disconnecting the connectors 05
    Galaxy S4 - Disconnecting the connectors 06
    Galaxy S4 - Disconnecting the connectors 07
    1. Now you can disconnect the following six connectors. Be very careful (see figure 1).
      LCD/touchscreen
      USB connector
      Front camera
      Earpiece
      Antenna cable
      Headphone output
      Make sure you don’t break off the resistors that are soldered onto the logic board.
    2. Place the pointed tip of the spudger very slightly below the contact and carefully lift it up. The pictures show where you should put the spudger to avoid breaking off the little resistors even if it slips (see figures 2 to 5).
  6. Removing the logic board

    Galaxy S4 - Removing the logic board 01
    Galaxy S4 - Removing the logic board 02
    Galaxy S4 - Removing the logic board 03
    1. Remove the screw holding the logic board in place (see figure 1).
      1 x 3.0 mm Phillips screw
    2. Now you can carefully lift the logic board using the spudger (see figure 2) and remove it by hand (see figure 3). The rear camera sometimes sticks a little bit. Be careful.
  7. Removing the USB connector

    Galaxy S4 - Removing the USB connector 01
    Galaxy S4 - Removing the USB connector 02
    Galaxy S4 - Removing the USB connector 03
    Galaxy S4 - Removing the USB connector 04
    Galaxy S4 - Removing the USB connector 05
    1. First disconnect the following cables. Place the flat end of the spudger very slightly below the contact and lift it up (see figures 1 to 3).
      Touch button cable
      Antenna cable
    2. Now remove the bracket over the USB port by inserting the pointed tip of the spudger between the USB port and the bracket and lifting the bracket with some force (see figure 4). Put the bracket in a compartment of your organizer tray.
    3. Insert the spudger below the USB connector cable and carefully detach it from the base (see figure 5). It’s lightly glued in place.
    4. Now carefully remove it by hand.
    5. In some cases, you may have to remove the adhesive film below it.
  8. Removing the antenna cable

    Galaxy S4 - Removing the antenna cable 01
    1. Now remove the blue antenna cable with your fingers.
  9. Removing the front camera

    Galaxy S4 - Removing the front camera 01
    Galaxy S4 - Removing the front camera 02
    1. In order to remove the front camera, you have to take off the black cover on the camera by placing the pointed tip of the laboratory spatula below the cover and carefully lifting it off (see figure 1).
    2. Then grasp the front camera’s connector and pull out the camera (see figure 2).
  10. Removing the earpiece

    Galaxy S4 - Removing the earpiece 01
    1. Now grasp the earpiece and sensor cable’s connector and pull it out.
  11. Removing the vibration motor

    Galaxy S4 - Removing the vibration motor 01
    Galaxy S4 - Removing the vibration motor 02
    1. Now remove the vibration motor. Carefully insert the pointed tip of the laboratory spatula or spudger below the cable set (see figure 1) and work your way toward the motor. It’s sometimes glued firmly in place. If you still can’t detach the vibration motor, you can use a heat gun to warm it slightly and soften the glue.
    2. Now remove the vibration motor (see figure 2).
  12. Removing the headphone output

    Galaxy S4 - Removing the headphone output 01
    Galaxy S4 - Removing the headphone output 02
    1. There’s still a screw holding the headphone output in place (see figure 1). Remove it.
      1 x 2.4 mm Phillips screw
    2. Now grip the connector and remove the headphone output (see figure 2). Be careful because it’s also glued in.
  13. Preparing the new display

    Galaxy S4 - Preparing the new display 01
    1. Not all available displays have the same features. If necessary, you’ll have to take all or some of the following parts from your old display before installing the new screen. We recommend using a heat gun to slightly warm up and soften the glue:
    2. 1 x heat shield
      1 x model sticker
      2 x soft rubber stickers
      1 x water damage indicator sticker
      3 x soft stickers
    3. You should also transfer the double-sided adhesive pad under the USB connector if there isn’t one on the new display.
  14. Installing the headphone output

    Galaxy S4 - Installing the headphone output 01
    Galaxy S4 - Installing the headphone output 02
    1. Now put the headphone output in the appropriate position in the new display (see figure 1).
    2. Then fasten the screw again (see figure 2).
      1 x 2.4 mm Phillips screw
  15. Installing the vibration motor

    Galaxy S4 - Installing the vibration motor 01
    Galaxy S4 - Installing the vibration motor 02
    1. Now put the vibration motor back in the appropriate position (see figures 1 and 2).
    2. The old glue is usually enough to hold it. Press it on firmly. If the vibration motor is too loose, use new glue. If the motor isn’t attached securely enough, your phone’s vibration will be weaker.
  16. Installing the earpiece

    Galaxy S4 - Installing the earpiece 01
    1. Now put the earpiece/sensor cable back in the appropriate position.
  17. Installing the front camera

    Galaxy S4 - Installing the front camera 01
    Galaxy S4 - Installing the front camera 02
    1. Now put the new front camera in the original location (see figure 1).
    2. Put the black cover over the front camera and the earpiece cable. Make sure the cover is fitted properly (see figure 2).
  18. Installing the USB connector

    Galaxy S4 - Installing the USB connector 01
    Galaxy S4 - Installing the USB connector 02
    Galaxy S4 - Installing the USB connector 03
    1. Now put the USB connector cable set back in the appropriate position (see figure 1).
    2. If the cable set is fitted correctly, you can clamp the bracket over the USB port again (see figure 2).
    3. Connect the blue antenna cable and then put it back in the cable guide. Be very careful because the contacts could bend if they’re not connected right (see figure 3).
    4. Install the touch button cable again (see figure 3).
  19. Installing the logic board

    Galaxy S4 - Installing the logic board 01
    Galaxy S4 - Installing the logic board 02
    Galaxy S4 - Installing the logic board 03
    1. Now put the logic board back in the frame. Start with the rear camera connected to the logic board. Once it’s fitted correctly, you can install the rest of the logic board (see figure 1).
    2. Make sure the cables don’t get under the logic board.
    3. Use the picture to check whether your logic board is positioned correctly (see figure 2).
    4. Now fasten the screw for the logic board (see figure 3).
      1 x 3.0 mm Phillips screw
  20. Connecting the connections

    Galaxy S4 - Connecting the connections 01
    1. Now put the following five connectors back in the corresponding slots. Use your finger to carefully press them into place. Only use as much pressure as you need for the contacts to gently click into place.
      LCD/touchscreen
      USB connector
      Front camera
      Earpiece
      Headphone output
      Antenna cable
  21. Attaching the plastic cover

    Galaxy S4 - Attaching the plastic cover 01
    1. Now put on the plastic cover and make sure that it clicks into place properly on all sides.
    2. Then screw it on.
      9 x 4.0 mm Phillips screws
  22. Inserting the SIM and microSD cards

    Galaxy S4 - Inserting the SIM and microSD cards 01
    1. Now slide the SIM card and the microSD card, if you have one, back into the corresponding slots.
  23. Installing the battery

    Galaxy S4 - Installing the battery 01
    1. Put the battery back in. The +/- symbols have to be touching the contact point.
  24. Attaching the back cover

    Galaxy S4 - Attaching the back cover 01
    1. It’s very easy to put the back cover back on. Put it on in the correct position and press it on all the way around the phone until it’s completely clicked into place.
  25. Final test

    1. Start your Samsung Galaxy S4 and enter the following key combination:
      *#0*#
    2. Then press the call button.
    3. Now you can check all the functions.
Ø 4.9 (209 Bewertungen)

Bewerte unsere Anleitung

Hat dir unsere Anleitung weitergeholfen? Wir sind auf deine Beurteilung gespannt.

Bewertung abgeben

Bewertung abgeben

Wie findest du unsere Reparatur-Anleitung Galaxy S4 Replacing the display?

Exzellent

Similar guides

You might also be interested in these guides.

You might be interested in

Get in touch with iDoc

Please contact our customer service for any questions about iDoc's products and services.

  • Send a message

    If you have a question about a guide or want to give us general feedback, just use our contact form

    Write a message
  • Free shipping

    From a minimum order value of 39.00 € your order will be shipped free of charge within Germany.

  • Call iDoc

    If you have any questions about our guides or services, call us from Monday to Friday, 10:00 a.m. to 6:00 p.m.

    +49 30 200 514 455
  • 5 star service

    We offer top quality and service. Our customers confirm this as well.

    Show reviews