Samsung Galaxy S20 Plus 5G Screen Replacement Guide | Full Step-by-step Repair

Today we are going to show you how to replace the OLED assembly on the Samsung Galaxy S20 Plus 5G phone. This repair is required when the screen is cracked, completely black, flickering, showing lines, touch not responding, or when the display is physically damaged due to a drop.

This guide is based on a full LCD assembly with the frame installed, which makes the repair easier and safer compared to a display-only replacement. Using a frame-installed screen also helps avoid alignment issues and reduces the risk of panel damage during installation.

LCD replacement is a mid-to-high difficulty level repair, as it requires removing most internal components and transferring them to the new screen frame. Make sure the device is powered off before starting and handle all flex cables gently to prevent damage.

In this guide, we will show you how to safely remove the damaged screen assembly and correctly install a new LCD assembly step by step.

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Compatibility and Model Numbers

This repair guide based on Samsung Galaxy S20 Plus (S20+) 5G mobile phone, but it is also compatible with Galaxy S20 Plus 4g version too.

Compatible Mode Numbers l SM-G986, SM-G986F, SM-G986F/DS, SM-G986U, SM-G986U1, SM-G9860, SM-G986B/DS, SM-G986N, SM-G986B, SM-G986W, SM-G985, SM-G985F, SM-G985F/DS

Tools You Need

• Heating pad / heat gun / hairdryer
• Suction cup
• Plastic card pry tools / opening picks
• Phillips PH000 screwdriver
• Philips PH00 screwdriver – For smaller internal screws (optional)
• Adhesive (B7000 or double-sided back cover adhesive)
• Bonding clips or rubber bands (optional but recommended)

How to Find Tools and Parts

• Heating pad – https://amzn.to/3H0tHzJ
• Portable Heat Gun – https://amzn.to/4mszih1
• Clamps https://amzn.to/3GYJT4w
• STREBITO 142 Piece Repair Tool Kit https://amzn.to/3UO1jUx
• Glue | Adhesive https://amzn.to/46exVxe
• Compatible Parts https://amzn.to/47VYx7t
• Silicone Work Repair Mat https://amzn.to/45Emz5l

Read More Information about Repair Tools

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Step 1: Prepare the device

Power off the phone completely and remove the SIM tray. Make sure you have the correct tools ready, which are listed in the description.

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Step 2: Heat and remove the back cover

To remove the back cover, gently heat around the edges to soften the factory adhesive. We are using a heating pad, but a heat gun or a hairdryer can also be used.
Once heated, use a suction cup to create a small gap between the frame and rear cover. Insert a plastic pry tool and carefully cut through the adhesive. Slowly lift and remove the back cover.

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Step 3: Remove wireless pad and battery connection

Undo five screws securing the wireless charging pad and disconnect the flex cable. Lift out the pad and disconnect the battery plug to cut power from the device.

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Step 4: Remove the logic board frame

Undo the five screws holding the logic board frame and carefully lift it away.

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Step 5: Remove the front camera

Disconnect and lift the front camera from the logic board. Keep it aside in a safe place.

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Step 6: Remove the logic board

Disconnect the six connector plugs attached to the logic board. Gently lift the board using a plastic pry tool or tweezers.

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Step 7: Remove the earpiece and flex cable

Apply a small amount of heat and carefully remove the earpiece unit and sensor flex from the body.

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Step 8: Remove the bottom speaker cover

Move to the bottom section and undo five screws to remove the secondary board cover with loudspeaker.

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Step 9: Remove main flex cables and charging port board

Disconnect and remove both main ribbon flex cables. Undo three screws and lift the charging port board.

How to Repair a Charging Port – Step-by-Step Guide

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Step 10: Remove vibrator motor and battery

Apply light heat and remove the vibrator motor.
Next, gently heat the battery area to soften the adhesive. Slide a plastic card under the battery to cut the glue and carefully lift it out.

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Step 11: Prepare the new screen assembly

At this point, only the broken front screen assembly remains.
It is recommended to use a screen with frame and buttons installed, which can be original, refurbished, or used. This type of screen is widely available and easier to install.

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Step 12: Reinstall internal components

Start transferring the removed parts to the new screen frame:

• Install the sensor flex and earpiece
• Place and secure the logic board
• Insert and connect the front camera
• Secure the SIM tray

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Step 13: Install battery and board frame

Place the battery in the frame and add adhesive if required.
Reconnect four connector plugs and secure the board frame using five screws.

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Step 14: Reinstall bottom components

Place the vibrator motor first.
Install the charging port board and secure it with three screws.
Reconnect the main flex cables from both ends.
Place the secondary board cover and secure it with five screws.

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Step 15: Test the screen before closing

Before installing the wireless pad, reconnect the battery plug and power on the device to test the display and touch functionality. Once confirmed working, power off the device.

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Step 16: Reinstall wireless pad and close the device

Reconnect and place the wireless charging pad.
Check the back cover adhesive. If weak, apply B7000 glue or use new double-sided adhesive.

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Step 17: Seal the back cover

Place the back cover on the frame and press along the edges. Use screen binding clips or rubber bands to hold the back cover in place while the adhesive cures.

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Step 18: Final check

Power on the phone and perform a final test. The new LCD assembly should now work perfectly.

Frequently Asked Questions

Q1: What problems indicate that the LCD assembly needs replacement?
A: Cracked glass, no display, flickering screen, vertical lines, dead pixels, touch not responding, and black screen issues are common signs that the LCD assembly is faulty.

Q2: What is the difference between LCD with frame and display-only replacement?
A: A screen with frame comes pre-mounted and makes the repair easier. Display-only replacements require separating the old screen from the frame, which is more difficult and time-consuming.

Q3: Is it necessary to remove all internal components for this repair?
A: Yes. When replacing a screen with frame, all internal parts such as the battery, logic board, cameras, speakers, and flex cables must be transferred to the new frame.

Q4: Can I test the new screen before fully reassembling the phone?
A: Yes. It is recommended to connect the battery and screen temporarily and power on the device to test display and touch before sealing the back cover.

Q5: Does replacing the LCD affect the phone’s water resistance?
A: Yes. The factory waterproof seal may be lost after opening the device. Using high-quality adhesive helps restore basic sealing, but full water resistance cannot be guaranteed.

Q6: Can a bad screen cause battery drain or overheating?
A: In rare cases, a shorted display flex cable can cause abnormal power draw, which may lead to battery drain or heating issues.

Q7: What should I do if the touch is not working after replacement?
A: Reseat the display flex connector, recheck the logic board connectors, and verify that no flex cables are damaged. A faulty new screen can also cause touch issues.

Visit our site to view other repair guides for the Galaxy S20 Plus 5G.