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Samsung Galaxy Z Fold 4 5G Charging Port Repair

Charging Port Repair guide for the Samsung Galaxy Z Fold 4 5G

Moderate
~56 min
25 steps

Before you begin

Tools

  • Heat gun or hair dryer
  • Suction cup tool
  • Plastic prying tools
  • Precision screwdriver set (Phillips #000)
  • Spudger tool
  • Tweezers
  • Isopropyl alcohol

Parts / materials

  • Replacement Galaxy Z Fold 4 charging port daughterboard
  • Pre-cut back cover adhesive strips

Safety

  • Power off the device completely before performing any disassembly.
  • Wear safety glasses when heating and prying glass panels.
  • Avoid using metal tools directly on or near the internal lithium-ion batteries.

Overview

# Samsung Galaxy Z Fold 4 5G Charging Port Repair Repair Guide Action-specific charging port repair walkthrough for the Samsung Galaxy Z Fold 4 5G. About 56 minutes across 25 steps. This DIY guide walks through charging port repair on the Samsung Galaxy Z Fold 4 5G (Galaxy Z 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 Z Fold 4 5G specifically—not a similar Galaxy Z sibling. Most DIY techs finish this Samsung Galaxy Z Fold 4 5G charging port repair in about 56 minutes when parts and tools are ready. Difficulty is rated intermediate for this model. Recommended tools for this Samsung Galaxy Z Fold 4 5G job: Heat gun or hair dryer, Suction cup tool, Plastic prying tools, Precision screwdriver set (Phillips #000), Spudger tool, Tweezers, Isopropyl alcohol. Parts and supplies: Replacement Galaxy Z Fold 4 charging port daughterboard, Pre-cut back cover adhesive strips. Power the Galaxy Z Fold 4 5G 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 Z Fold 4 5G, 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 the SIM card tray

    1 min

    Insert a SIM ejector tool into the pinhole next to the SIM tray on the top side. Remove the tray from the device.

  2. 2

    Heat the rear glass panel

    3 min

    Apply heat to the edges of the back cover glass using a heat gun for approximately two minutes to soften the adhesive.

  3. 3

    Attach suction cup to lower rear glass

    2 min

    Press a suction cup firmly onto the lower portion of the rear glass cover. Firmly pull up on the ring to create a slight gap.

  4. 4

    Insert an opening pick

    2 min

    Slide a plastic opening pick into the gap between the rear glass and the metal frame.

  5. 5

    Slice perimeter adhesive

    4 min

    Move the pick along all edges of the glass back cover to slice through the adhesive seal completely.

  6. 6

    Remove the rear glass panel

    2 min

    Lift the rear glass cover away from the chassis and place it on a clean surface.

  7. 7

    Unscrew the upper speaker shield

    3 min

    Use a Phillips #000 screwdriver to remove the screws securing the wireless charging coil upper shield.

  8. 8

    Disconnect the wireless charging pad

    2 min

    Use a plastic spudger to detach the press connector for the wireless charging pad from the motherboard.

  9. 9

    Remove the wireless charging coil

    2 min

    Carefully peel up and remove the wireless charging coil assembly from the device.

  10. 10

    Unscrew the lower speaker enclosure

    3 min

    Remove the Phillips screws holding the lower speaker and daughterboard cover in place.

  11. 11

    Remove the lower speaker housing

    2 min

    Insert a spudger under the lower speaker housing and gently pry it out of the phone.

  12. 12

    Disconnect the main interconnect cable

    2 min

    Pry up the main flex cable connector linking the charging port sub-board to the main motherboard.

  13. 13

    Disconnect the display interconnect cable

    2 min

    Detach the secondary display flex cable from the sub-board using the flat tip of a spudger.

  14. 14

    Disconnect the antenna coaxial cables

    2 min

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

  15. 15

    Unscrew the sub-board retaining screw

    1 min

    Remove the single Phillips screw securing the sub-board to the outer housing frame.

  16. 16

    Extract the old charging port sub-board

    2 min

    Gently pry up the damaged charging port sub-board using a spudger and lift it out of the chassis.

  17. 17

    Seat the new charging port sub-board

    2 min

    Align the replacement sub-board into the lower housing recess and press it down flush.

  18. 18

    Secure the sub-board screw

    1 min

    Reinstall and tighten the single Phillips screw securing the new sub-board to the frame.

  19. 19

    Reconnect antenna coaxial cables

    2 min

    Align and snap the coaxial antenna cables onto their mating connectors on the new sub-board.

  20. 20

    Reconnect interconnect flex cables

    2 min

    Press down firmly on the main and display flex connectors until they click into place on the sub-board.

  21. 21

    Reinstall lower speaker housing

    3 min

    Place the lower speaker assembly back into position and fasten its Phillips screws.

  22. 22

    Reinstall wireless charging coil

    3 min

    Align the wireless charging assembly, reconnect its motherboard press connector, and secure the frame screws.

  23. 23

    Clean old adhesive from frame

    3 min

    Scrape off residual adhesive around the frame using isopropyl alcohol and a lint-free cloth.

  24. 24

    Apply new rear panel adhesive

    3 min

    Align and stick pre-cut replacement adhesive strips onto the outer frame perimeter.

  25. 25

    Reseal the back cover and insert SIM tray

    2 min

    Align the glass rear panel onto the frame, press firmly along all edges to seal it, and reinsert the SIM card tray.

After your Samsung Galaxy Z Fold 4 5G charging port repair

Power the Galaxy Z Fold 4 5G 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 Z Fold 4 5G job before assuming the part is defective. Keep leftover adhesive and screws labeled in case you need a second pass.

Prefer a professional repair?

Book Samsung Galaxy Z Fold 4 5G charging port repair at LML Repair in Seattle — same-day options available.