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Power Button Repair Guide for Galaxy S23 Ultra

Power Button Repair guide for the Samsung Galaxy S23 Ultra

Moderate
~41 min
17 steps

Before you begin

Tools

  • Heat gun or hair dryer
  • Suction cup tool
  • Plastic prying tools
  • Precision screwdriver set (Phillips #00)
  • Spudger tool
  • Tweezers
  • SIM eject tool

Parts / materials

  • Pre-cut back cover replacement adhesive
  • Isopropyl alcohol (99%)
  • Lint-free microfiber cloth

Safety

  • Wear safety glasses when heating and prying glass panels.
  • Disconnect the battery press-connector immediately after removing the midframe to prevent electrical shorts.
  • Keep heat gun temperatures under 80°C (176°F) to protect the display and battery.

Overview

# Power Button Repair Guide for Galaxy S23 Ultra Action-specific power button repair walkthrough for the Samsung Galaxy S23 Ultra. About 41 minutes across 17 steps. This DIY guide walks through power button repair on the Samsung Galaxy S23 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 S23 Ultra specifically—not a similar Galaxy S sibling. Most DIY techs finish this Samsung Galaxy S23 Ultra power button repair in about 41 minutes when parts and tools are ready. Difficulty is rated intermediate for this model. Recommended tools for this Samsung Galaxy S23 Ultra job: Heat gun or hair dryer, Suction cup tool, Plastic prying tools, Precision screwdriver set (Phillips #00), Spudger tool, Tweezers, SIM eject tool. Parts and supplies: Pre-cut back cover replacement adhesive, Isopropyl alcohol (99%), Lint-free microfiber cloth. Power the Galaxy S23 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 S23 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 power button repair for this model with tested parts and a workmanship warranty.

Step-by-step

  1. 1

    Eject SIM Tray

    1 min

    Insert a SIM eject tool into the hole at the bottom frame to pop out the SIM tray. Remove the tray completely from the device.

  2. 2

    Heat Rear Glass

    3 min

    Apply a heat gun set to 80°C (176°F) around all edges of the rear glass for 2 to 3 minutes. This softens the factory adhesive securing the back cover.

  3. 3

    Attach Suction Cup

    2 min

    Place a suction cup onto the lower portion of the rear glass near the USB-C port. Pull up gently on the suction cup handle to create a small gap.

  4. 4

    Insert Opening Pick

    2 min

    Insert the thin edge of an opening pick into the gap created beneath the rear glass. Do not push the pick in deeper than 5 mm to avoid internal damage.

  5. 5

    Slice Rear Adhesive

    4 min

    Slide the opening pick around the entire perimeter of the back glass to slice through the adhesive. Reapply heat if the pick meets heavy resistance.

  6. 6

    Remove Rear Glass

    1 min

    Gently lift the back glass off the phone body once all adhesive is sliced. Set the glass aside on a clean surface.

  7. 7

    Unscrew Midframe

    4 min

    Use a Phillips #00 screwdriver to remove the 15 screws securing the midframe and wireless charging coil. Store the screws together safely.

  8. 8

    Remove Wireless Coil Assembly

    2 min

    Carefully pry up the edges of the plastic midframe and wireless charging coil. Lift the assembly out of the phone chassis.

  9. 9

    Disconnect Battery Cable

    1 min

    Use the flat end of a plastic spudger to pry the battery press connector straight up from the motherboard. This cuts power to prevent short circuits.

  10. 10

    Disconnect Power Button Cable

    1 min

    Locate the power button flex connector on the right edge of the motherboard. Use your spudger to gently pop the connector straight up from its socket.

  11. 11

    Unscrew Motherboard Bracket

    3 min

    Remove the single Phillips #00 screw securing the upper motherboard assembly to the frame. Gently lift the right side of the board slightly to clear the button area.

  12. 12

    Pry Power Button Flex

    3 min

    Insert fine tweezers under the damaged power button flex cable attached to the inside frame. Carefully peel the flex cable and button contact away from the frame.

  13. 13

    Install New Power Button Flex

    3 min

    Align the new power button flex cable precisely into the frame recess. Press firmly with a spudger to secure its adhesive back against the metal inner wall.

  14. 14

    Reseat Motherboard Bracket

    2 min

    Lower the motherboard back into its original flat position in the chassis. Secure it using the single Phillips #00 screw removed earlier.

  15. 15

    Reconnect Connectors

    2 min

    Press the power button flex connector and the main battery connector straight down into their sockets until they snap into place.

  16. 16

    Reinstall Midframe Assembly

    4 min

    Place the wireless charging coil and midframe back onto the chassis. Fasten all 15 Phillips #00 screws to secure it.

  17. 17

    Reseal Rear Glass

    3 min

    Apply new pre-cut adhesive to the rear frame rim, then align and press the back cover firmly onto the phone to restore the seal.

After your Samsung Galaxy S23 Ultra power button repair

Power the Galaxy S23 Ultra back on and test the power button repair 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 S23 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 S23 Ultra repair context in the encyclopedia, or open related DIY guides.

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