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Samsung Galaxy S20 Ultra Screen Replacement

Screen Replacement guide for the Samsung Galaxy S20 Ultra

Difficult
~49 min
18 steps

Before you begin

Tools

  • Phillips #00 Precision Screwdriver
  • Heat gun or hair dryer
  • Suction cup tool
  • Plastic prying picks
  • Plastic spudger
  • Tweezers
  • SIM card eject tool

Parts / materials

  • Replacement Samsung Galaxy S20 Ultra screen assembly with frame
  • Pre-cut back cover adhesive sticker
  • Isopropyl alcohol (99%)

Safety

  • Wear protective safety glasses to prevent eye injury from cracked glass splinters.
  • Disconnect the battery cable immediately after opening the device to prevent electrical short circuits.
  • Do not puncture, bend, or heat the lithium-ion battery directly.

Overview

# Samsung Galaxy S20 Ultra Screen Replacement Repair Guide Action-specific screen replacement walkthrough for the Samsung Galaxy S20 Ultra. About 49 minutes across 18 steps. This DIY guide walks through screen replacement on the Samsung Galaxy S20 Ultra (Galaxy S series phone). Before you open the device, confirm the exact model number on the Samsung settings screen or rear housing so your replacement part matches the Galaxy S20 Ultra specifically—not a similar Galaxy S sibling. Most DIY techs finish this Samsung Galaxy S20 Ultra screen replacement in about 49 minutes when parts and tools are ready. Difficulty is rated advanced for this model. Recommended tools for this Samsung Galaxy S20 Ultra job: Phillips #00 Precision Screwdriver, Heat gun or hair dryer, Suction cup tool, Plastic prying picks, Plastic spudger, Tweezers, SIM card eject tool. Parts and supplies: Replacement Samsung Galaxy S20 Ultra screen assembly with frame, Pre-cut back cover adhesive sticker, Isopropyl alcohol (99%). Power the Galaxy S20 Ultra off completely, remove SIMs/SD cards if present, and work on a clean, well-lit surface with a magnetic mat for screws. If a step feels wrong for your Samsung Galaxy S20 Ultra, stop and compare the connector layout to the photos in this guide. When you prefer a same-day pro repair in Seattle instead, LML Repair can handle screen replacement for this model with tested parts and a workmanship warranty.

Step-by-step

  1. 1

    Power Off the Phone

    1 min

    Press and hold the Power and Volume Down buttons until the power menu appears. Tap Power Off and wait for the screen to go completely dark.

  2. 2

    Eject the SIM Tray

    1 min

    Insert a SIM eject tool into the small hole at the top edge of the device. Press firmly until the tray pops out, then remove it.

  3. 3

    Heat the Back Glass

    3 min

    Use a heat gun or hair dryer on medium heat to warm the rear cover edges for 2 to 3 minutes. This softens the strong factory adhesive securing the panel.

  4. 4

    Attach Suction Cup

    2 min

    Place a suction cup near the bottom edge of the back glass panel. Pull gently upward to create a tiny gap between the glass and the midframe.

  5. 5

    Slice Back Cover Adhesive

    5 min

    Insert a plastic opening pick into the gap created by the suction cup. Carefully slide the pick around all four edges to slice through the adhesive.

  6. 6

    Remove the Back Glass

    1 min

    Lift the rear glass carefully off the frame once all adhesive is severed. Set the back panel aside in a safe, clean space.

  7. 7

    Unscrew Wireless Charging Coil

    3 min

    Use a Phillips #00 screwdriver to remove the 15 screws securing the upper motherboard bracket and wireless charging pad assembly.

  8. 8

    Disconnect Battery Connector

    2 min

    Gently peel up the wireless charging coil assembly to reveal the mainboard. Use a plastic spudger to pry the battery flex cable straight up off its socket.

  9. 9

    Remove Loudspeaker Assembly

    3 min

    Remove five Phillips #00 screws holding the lower speaker enclosure in place. Use tweezers to lift the loudspeaker module out of the frame.

  10. 10

    Disconnect Display and Interconnect Cables

    2 min

    Use your spudger to detach the main flex ribbon, sub flex ribbon, and primary display connector from the mainboard and daughterboard.

  11. 11

    Remove the Main Motherboard

    3 min

    Unscrew the single Phillips screw securing the main board, disconnect the front camera, and lift the motherboard out of the frame.

  12. 12

    Remove Bottom Daughterboard

    2 min

    Unscrew three Phillips screws holding the charging port board in place. Lift the daughterboard out from the lower frame cavity.

  13. 13

    Remove Vibration Motor and Earpiece

    4 min

    Apply light heat to the top front of the frame. Use tweezers to pry out the earpiece speaker and vibration motor from their recessed housings.

  14. 14

    Install Hardware into New Screen Frame

    4 min

    Place the earpiece speaker and vibration motor into their corresponding slots on the new display assembly, using adhesive if required.

  15. 15

    Reinstall Motherboard and Daughterboard

    3 min

    Set the main motherboard and lower charging daughterboard into the new screen frame. Secure both boards with their dedicated Phillips screws.

  16. 16

    Reconnect All Interconnect Cables

    3 min

    Attach the main display, sub flex, and front camera ribbons to their sockets by pressing gently until they snap into place.

  17. 17

    Reattach Loudspeaker and Wireless Assembly

    4 min

    Reconnect the battery press connector, then reinstall the lower speaker and upper wireless charging pad. Fasten all Phillips screws back into place.

  18. 18

    Seal the Back Glass

    3 min

    Apply a fresh pre-cut adhesive strip to the frame edges. Align the back glass cover and press down firmly around the perimeter to seal.

After your Samsung Galaxy S20 Ultra screen replacement

Power the Galaxy S20 Ultra back on and test the screen replacement function before you put every screw away. Check touch/display response, charging, cameras, buttons, and wireless as relevant to this repair. If something fails after closing the device, reopen carefully and reseat the connectors for this Samsung Galaxy S20 Ultra job before assuming the part is defective. Keep leftover adhesive and screws labeled in case you need a second pass.

Keep learning

Explore more Samsung Galaxy S20 Ultra repair context in the encyclopedia, or open related DIY guides.

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