Phone · Samsung · Galaxy S21 Plus
Samsung Galaxy S21 Plus Charging Port Repair
Charging Port Repair guide for the Samsung Galaxy S21 Plus
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
Step-by-step
- 1
Eject SIM Tray
1 minInsert a SIM eject tool into the hole at the bottom frame and press gently to eject the SIM tray.
- 2
Heat Rear Glass
3 minApply a heat gun or iOpener around the outer edges of the rear glass for 2-3 minutes to soften the adhesive.
- 3
Attach Suction Cup
1 minPlace a suction cup near the bottom edge of the rear glass panel and pull upward to create a slight gap.
- 4
Insert Opening Pick
1 minInsert an opening pick into the small gap created by the suction cup at the bottom edge.
- 5
Slice Rear Adhesive
5 minSlide opening picks carefully around all four sides of the rear cover to cut through the perimeter adhesive.
- 6
Remove Rear Glass
1 minLift the rear glass cover away from the phone frame once all adhesive is fully severed.
- 7
Unscrew Wireless Coil
3 minRemove the Phillips #00 screws securing the upper motherboard shield and wireless charging coil.
- 8
Detach Wireless Coil
2 minGently unclip the wireless coil flex connector from the board and remove the coil assembly.
- 9
Unscrew Loudspeaker
2 minRemove the Phillips #00 screws holding the loudspeaker assembly to the bottom of the frame.
- 10
Remove Loudspeaker
1 minPry up the loudspeaker module using a flat spudger and lift it out of the chassis.
- 11
Disconnect Battery Cable
1 minUse the flat end of a spudger to disconnect the battery cable from the main motherboard.
- 12
Disconnect Display Flex Cable
1 minDisconnect the display ribbon cable press-connector from the daughterboard at the bottom.
- 13
Disconnect Interconnect Cables
2 minUnplug the main interconnect flex cable connectors connecting the mainboard to the charging daughterboard.
- 14
Unclip Antenna Coax Cables
2 minUse precision tweezers to carefully detach the blue and white coaxial antenna connectors from the sub-board.
- 15
Unscrew Daughterboard
1 minRemove the single Phillips #00 screw holding the USB-C charging port daughterboard to the frame.
- 16
Remove Damaged Daughterboard
2 minInsert a spudger underneath the daughterboard and gently pry it out of its recessed bay.
- 17
Insert New Daughterboard
2 minPlace the new USB-C charging port sub-board into position, ensuring proper alignment with the chassis cutouts.
- 18
Secure Daughterboard Screw
1 minReinstall and tighten the single Phillips #00 retaining screw on the daughterboard.
- 19
Reconnect Antenna Cables
2 minSnap the coaxial antenna connectors carefully back onto their matching ports on the new sub-board.
- 20
Attach Interconnect Cables
2 minPress the interconnect flex cable connectors firmly onto the daughterboard until you feel them click into place.
- 21
Attach Display Cable
1 minAlign and snap the display flex connector onto its matching socket on the daughterboard.
- 22
Reconnect Battery Cable
1 minReattach the main battery flex cable to the motherboard socket to restore power connections.
- 23
Reinstall Loudspeaker
2 minSet the loudspeaker module back into place over the daughterboard and secure it with its screws.
- 24
Reattach Wireless Coil
3 minPosition the wireless charging pad, press its flex connector onto the board, and replace all upper screws.
- 25
Apply New Adhesive
4 minClean remaining adhesive off the frame with isopropyl alcohol and install pre-cut back cover adhesive strips.
- 26
Seal Rear Glass
2 minAlign the rear glass cover with the frame and press firmly along all edges to set the new seal.
- 27
Reinsert SIM Tray
1 minPush 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.

