Introduction

Cracked screen? Touch not working? Bad OLED display? Use this guide to replace the display + touch panel assembly in your Galaxy S8+ and restore it to perfect working order.

Note: This guide instructs you to replace only the display while leaving the original frame, logic board, and battery in place. However, some replacement screens for this phone come pre-installed in a new frame (a.k.a. chassis), which requires a very different procedure—transplanting your phone's internals and installing a new battery. Make sure you have the correct part before starting this guide. To replace the entire screen assembly together with a new frame, follow this guide instead.

If the frame is damaged or bent, it's important to replace it, or else the new screen may not mount correctly and can suffer damage from uneven pressure.

The process of separating the display from the frame usually destroys the display, so don't follow this guide unless you intend to replace the display.

Video Overview

Using a spudger, disconnect the display by carefully prying up its flex cable connector from the socket on the motherboard.
  • Using a spudger, disconnect the display by carefully prying up its flex cable connector from the socket on the motherboard.

  • Optionally, temporarily press the phone's back cover into place to protect the motherboard and battery from accidental damage in the following steps.

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Heat the bottom edge of the display to soften the adhesive securing it to the phone.
  • Heat the bottom edge of the display to soften the adhesive securing it to the phone.

  • The glue securing the display can be significantly stronger than the glue that secures the back cover. If necessary, switch to a hair dryer or heat gun in order to apply enough heat to weaken the adhesive.

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If possible, press a suction cup into place near the bottom edge of the display. If your display is badly cracked, the suction cup may not stick. Try lifting the display with strong tape, or superglue the suction cup in place and allow it to cure so you can proceed.
  • If possible, press a suction cup into place near the bottom edge of the display.

  • If your display is badly cracked, the suction cup may not stick. Try lifting the display with strong tape, or superglue the suction cup in place and allow it to cure so you can proceed.

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Pull up on the suction cup to lift the display's lower edge, opening a slight gap between the display and the frame. Insert an opening pick into the gap. Optionally, once the pick is inserted, you can add a few drops of isopropyl alcohol into the gap to help weaken the adhesive in the following steps.
  • Pull up on the suction cup to lift the display's lower edge, opening a slight gap between the display and the frame.

  • Insert an opening pick into the gap.

  • Optionally, once the pick is inserted, you can add a few drops of isopropyl alcohol into the gap to help weaken the adhesive in the following steps.

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Slide your opening pick along the lower edge of the display to separate the adhesive underneath. Slide your opening pick along the lower edge of the display to separate the adhesive underneath.
  • Slide your opening pick along the lower edge of the display to separate the adhesive underneath.

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Leave the pick in place and grab a second pick as you proceed to the next step. Leaving the pick inserted can help prevent the glue you just separated from re-adhering. Leave the pick in place and grab a second pick as you proceed to the next step. Leaving the pick inserted can help prevent the glue you just separated from re-adhering.
  • Leave the pick in place and grab a second pick as you proceed to the next step. Leaving the pick inserted can help prevent the glue you just separated from re-adhering.

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Reheat the iOpener and apply heat to the left edge of the display for at least two minutes.
  • Reheat the iOpener and apply heat to the left edge of the display for at least two minutes.

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Use your opening pick to separate the adhesive under the left side of the display. Use your opening pick to separate the adhesive under the left side of the display. Use your opening pick to separate the adhesive under the left side of the display.
  • Use your opening pick to separate the adhesive under the left side of the display.

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Apply heat to the right side of the screen for at least two minutes.

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Use your opening pick to separate the adhesive under the right edge of the display. The display's flex cable is located just below the midpoint on this side, and may interfere with your pick if you pry too deeply. The display's flex cable is located just below the midpoint on this side, and may interfere with your pick if you pry too deeply.

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Apply heat to the top edge of the screen for at least two minutes.

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Gently work your opening pick under the top edge of the display to separate the adhesive underneath. Don't pry too aggressively or you may damage the front-facing sensors and speaker assembly. You can come back to finish separating this section after the rest of the display is loose. Don't pry too aggressively or you may damage the front-facing sensors and speaker assembly. You can come back to finish separating this section after the rest of the display is loose.
  • Gently work your opening pick under the top edge of the display to separate the adhesive underneath.

  • Don't pry too aggressively or you may damage the front-facing sensors and speaker assembly. You can come back to finish separating this section after the rest of the display is loose.

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Use your picks as needed to finish separating the adhesive beneath all areas of the display. Remember that the display's flex cable is located just below the midpoint on the right edge, and may interfere with your pick. Use a little extra caution when prying near the top edge so as not to damage the front-facing sensors and earpiece speaker.
  • Use your picks as needed to finish separating the adhesive beneath all areas of the display.

    • Remember that the display's flex cable is located just below the midpoint on the right edge, and may interfere with your pick.

    • Use a little extra caution when prying near the top edge so as not to damage the front-facing sensors and earpiece speaker.

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Lift and fully separate the left edge of the display from the frame.
  • Lift and fully separate the left edge of the display from the frame.

    • The opposite edge will take a bit of a extra care to separate due to the display flex cable.

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Route the display's flex cable through its hole in the frame in order to fully separate the right edge of the display. Route the display's flex cable through its hole in the frame in order to fully separate the right edge of the display.
  • Route the display's flex cable through its hole in the frame in order to fully separate the right edge of the display.

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Remove the display. Before installing a new display, it's very important to remove all traces of the old adhesive from the frame, while taking special care to remove any small glass fragments.
  • Remove the display.

  • Before installing a new display, it's very important to remove all traces of the old adhesive from the frame, while taking special care to remove any small glass fragments.

  • After removing all traces of glue and glass from the frame, clean the adhesion areas with 90% (or higher) isopropyl alcohol and a lint-free cloth or coffee filter. Swipe in one direction only, not back and forth.

    • This helps remove any remaining adhesive residue and preps the surface for the new adhesive.

  • If the frame is bent, or if any glue or glass remnants are left behind, the new display will not mount correctly and may be damaged. If necessary, replace the frame.

  • The best way to secure the new screen is with a sheet of custom-cut double-sided tape. Apply the tape to the back of the screen, then carefully feed the display cable through the frame. Align the screen and press it into place.

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Conclusion

To reassemble your device, follow these instructions in reverse order.

22 other people completed this guide.

iRobot

Member since: 09/24/2009

1 Reputation

774 Guides authored

2 Comments

After replacing LCD my phone showing message that “Battery temperature too low“ and pause charging. There are some video showing install wireless charging module after replacing LCD would solve this issue but for me it still not charging even with wireless charging module on. Any suggestion?

samion 2048 - Reply

samion 2048, This is because the device was turned on before attaching the wireless charging coil. The coil houses the ambient temperature sensor.

Brandon Tuey -

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