Samsung Galaxy S23 Ultra Repair Guide – Breaking It Down for You

OVERVIEW:

In this detailed guide, we walk you through replacing the Samsung Galaxy S23 Ultra’s screen and frame. The AMOLED screen may not show external cracks, but internal damage like bleeding requires full replacement. This tutorial covers every step, from disassembling components to reassembly. With just a few tools and careful organization, you can restore your device to like-new condition. Whether you’re a technician or a DIY enthusiast, this teardown ensures a professional result.

See the official Samsung specs for this model

REPAIR TIME & SKILL LEVEL:

This repair is estimated to take about 1 to 2 hours to complete and is of INTERMEDIATE difficulty, requiring careful handling of delicate connectors and proper organization of screws and components.

STEPS:

Tools You Need

For this repair, you will need a heating mat set between 70 to 90 degrees Celsius, a Phillips screwdriver, a plastic card for safe glass removal, isopropyl alcohol to loosen adhesive, and a plastic spudger for prying components without damage.

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Heat and Loosen the Back Glass

• Use a preheat mat or apply isopropyl alcohol to the edge and insert a plastic card at the corner.
• Gently maneuver the card around the edges to loosen the adhesive.
• Open the back like a vertical flap, similar to a gear mechanism.

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Remove All Screws

• Unscrew the 18 screws securing the internal components.
• Use a screw pad for proper organization.
• Be aware of a hidden screw near the camera.

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Disconnect Wireless and NFC Components

• Disconnect two flex cables: the NFC tag and wireless charging.
• Leave the bottom part attached to the loudspeaker for efficiency.

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Disconnect the Battery

• Always disconnect the battery first to avoid shorts.
• Pull from the edge carefully—never force a connection.

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Remove Loudspeaker and SIM Tray

• Remove the loudspeaker unit carefully.
• Use tweezers to eject and remove the SIM tray.

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Extract the Sub PBA Board

• Unscrew and remove the Sub PBA board, leaving antenna module screws for later.
• Carefully lift and leave it connected—do not force anything.

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Detach the Antenna Cover from the Main PBA

• Pry from a safe area with no capacitors.
• Set the antenna cover aside, keeping magnets away from camera parts.

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Remove the Main PBA Board

• Lift the main board gently once all connections are released.
• Disconnect the camera and note the sandwich-style board structure.

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Remove 5G Antenna Modules (U.S. Version Only)

• Unscrew the 5G modules from their connectors.
• Use spudger and alcohol to detach any adhesive flex cables carefully.

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Remove the Battery

• Use alcohol, a concave-tip pry tool, and a spudger for battery removal.
• Work slowly—no heat required unless absolutely needed.

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Reinstall the Battery

• Insert and secure the battery in the new screen assembly.
• Ensure it sits flat with no gaps.

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Install the Sub PBA and Charging Port

• Snap the Sub PBA and port into place—listen for the click.
• Secure with three screws and verify alignment.

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Insert the Main PBA

• Carefully reconnect the camera and main flex cables.
• Avoid touching camera lenses to prevent costly damage.

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Reconnect Flex Cables

• Attach all internal flex cables, including LCD, NFC, stylus, and antenna.
• Match cable curves and naming to avoid confusion.

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Reinstall Camera and Antenna Cover

• Insert the front camera first, followed by the antenna cover.
• Ensure each component clicks into place.

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Reconnect NFC & Wireless Charging Tag

• Snap the wireless components back into position.
• Leave battery connection for the final step.

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Insert SIM Tray and Final Flex Check

• Insert SIM tray gently with tweezers if needed.
• Perform a final check of all connections and positioning.

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Secure the 5G Modules and Screws

• Install both 5G module screws near the Sub PBA.
• Use correct color screws—black screws are for camera-related modules.

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Replace All Screws

• Insert all 18 screws in any order (length and size are uniform).
• Avoid confusing silver screws with black ones.

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Close the Back Panel

• Align and press the back glass gently without additional adhesive.
• Use a suction tool and clamps if needed.

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Power On and Test the Device

• Power on the phone to test functionality.
• Most technicians forget to test screen alignment—don’t skip this!

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CONCLUSION:

Replacing the Samsung Galaxy S23 Ultra’s screen and frame is a precise process requiring attention to detail. With careful disassembly, the right tools, and patience, you can complete this repair successfully. Always remember to test components before sealing the device. Follow proper screw organization and flex cable handling to avoid errors. This guide ensures your repair looks just like factory new.

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VIDEO TUTORIAL:

Looking for a more in-depth tutorial? Check out our complete teardown video for a detailed step-by-step walkthrough.

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MAIL-IN REPAIR SERVICE:

We offer professional screen replacement services. If you’re unsure about doing this repair yourself, send your device to our expert technicians for fast and reliable repair.

https://tekdep.com/device-repair/

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SHOP PARTS:

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SHOP TOOLS:

Using precision tools ensures a safe and efficient repair. Always use the right tools to prevent damage to delicate components.

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HAVE QUESTIONS?

If you have any questions, leave them in the comments below. Our community and team will be happy to help!

• Phone: 818-456-4479
• Email: [email protected]