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Samsung Galaxy S21 Plus Charging Port Repair

Charging Port Repair guide for the Samsung Galaxy S21 Plus

Moderate
~50 min
27 steps

Before you begin

Tools

  • Precision screwdriver set
  • Plastic opening tools
  • Opening picks
  • Tweezers
  • Suction cup
  • Heat gun or iOpener
  • SIM card eject tool

Parts / materials

  • Replacement Galaxy S21 Plus charging port daughterboard
  • Pre-cut rear cover adhesive gasket
  • 99% Isopropyl alcohol

Safety

  • Always disconnect the battery before handling internal components to avoid short circuits.
  • Wear eye protection when heating and working with glass panels.
  • Do not puncture, bend, or apply pressure to the lithium-ion battery.
  • Work in a well-ventilated space when applying cleaning solvents.

Overview

# Samsung Galaxy S21 Plus Charging Port Repair Repair Guide Action-specific charging port repair walkthrough for the Samsung Galaxy S21 Plus. About 50 minutes across 27 steps. This DIY guide walks through charging port repair on the Samsung Galaxy S21 Plus (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 S21 Plus specifically—not a similar Galaxy S sibling. Most DIY techs finish this Samsung Galaxy S21 Plus charging port repair in about 50 minutes when parts and tools are ready. Difficulty is rated intermediate for this model. Recommended tools for this Samsung Galaxy S21 Plus job: Precision screwdriver set, Plastic opening tools, Opening picks, Tweezers, Suction cup, Heat gun or iOpener, SIM card eject tool. Parts and supplies: Replacement Galaxy S21 Plus charging port daughterboard, Pre-cut rear cover adhesive gasket, 99% Isopropyl alcohol. Power the Galaxy S21 Plus 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 S21 Plus, 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 charging port 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 and press gently to eject the SIM tray.

  2. 2

    Heat Rear Glass

    3 min

    Apply a heat gun or iOpener around the outer edges of the rear glass for 2-3 minutes to soften the adhesive.

  3. 3

    Attach Suction Cup

    1 min

    Place a suction cup near the bottom edge of the rear glass panel and pull upward to create a slight gap.

  4. 4

    Insert Opening Pick

    1 min

    Insert an opening pick into the small gap created by the suction cup at the bottom edge.

  5. 5

    Slice Rear Adhesive

    5 min

    Slide opening picks carefully around all four sides of the rear cover to cut through the perimeter adhesive.

  6. 6

    Remove Rear Glass

    1 min

    Lift the rear glass cover away from the phone frame once all adhesive is fully severed.

  7. 7

    Unscrew Wireless Coil

    3 min

    Remove the Phillips #00 screws securing the upper motherboard shield and wireless charging coil.

  8. 8

    Detach Wireless Coil

    2 min

    Gently unclip the wireless coil flex connector from the board and remove the coil assembly.

  9. 9

    Unscrew Loudspeaker

    2 min

    Remove the Phillips #00 screws holding the loudspeaker assembly to the bottom of the frame.

  10. 10

    Remove Loudspeaker

    1 min

    Pry up the loudspeaker module using a flat spudger and lift it out of the chassis.

  11. 11

    Disconnect Battery Cable

    1 min

    Use the flat end of a spudger to disconnect the battery cable from the main motherboard.

  12. 12

    Disconnect Display Flex Cable

    1 min

    Disconnect the display ribbon cable press-connector from the daughterboard at the bottom.

  13. 13

    Disconnect Interconnect Cables

    2 min

    Unplug the main interconnect flex cable connectors connecting the mainboard to the charging daughterboard.

  14. 14

    Unclip Antenna Coax Cables

    2 min

    Use precision tweezers to carefully detach the blue and white coaxial antenna connectors from the sub-board.

  15. 15

    Unscrew Daughterboard

    1 min

    Remove the single Phillips #00 screw holding the USB-C charging port daughterboard to the frame.

  16. 16

    Remove Damaged Daughterboard

    2 min

    Insert a spudger underneath the daughterboard and gently pry it out of its recessed bay.

  17. 17

    Insert New Daughterboard

    2 min

    Place the new USB-C charging port sub-board into position, ensuring proper alignment with the chassis cutouts.

  18. 18

    Secure Daughterboard Screw

    1 min

    Reinstall and tighten the single Phillips #00 retaining screw on the daughterboard.

  19. 19

    Reconnect Antenna Cables

    2 min

    Snap the coaxial antenna connectors carefully back onto their matching ports on the new sub-board.

  20. 20

    Attach Interconnect Cables

    2 min

    Press the interconnect flex cable connectors firmly onto the daughterboard until you feel them click into place.

  21. 21

    Attach Display Cable

    1 min

    Align and snap the display flex connector onto its matching socket on the daughterboard.

  22. 22

    Reconnect Battery Cable

    1 min

    Reattach the main battery flex cable to the motherboard socket to restore power connections.

  23. 23

    Reinstall Loudspeaker

    2 min

    Set the loudspeaker module back into place over the daughterboard and secure it with its screws.

  24. 24

    Reattach Wireless Coil

    3 min

    Position the wireless charging pad, press its flex connector onto the board, and replace all upper screws.

  25. 25

    Apply New Adhesive

    4 min

    Clean remaining adhesive off the frame with isopropyl alcohol and install pre-cut back cover adhesive strips.

  26. 26

    Seal Rear Glass

    2 min

    Align the rear glass cover with the frame and press firmly along all edges to set the new seal.

  27. 27

    Reinsert SIM Tray

    1 min

    Push the SIM card tray back into its slot until flush with the phone's outer frame.

After your Samsung Galaxy S21 Plus charging port repair

Power the Galaxy S21 Plus back on and test the charging port 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 S21 Plus 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 S21 Plus repair context in the encyclopedia, or open related DIY guides.

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