Samsung Galaxy S21+ USB-C Charging Port and Daughterboard Replacement

Insert a SIM eject tool, bit, or straightened paper clip into the SIM card tray hole on the top edge of the phone.

• Press the SIM eject tool into the SIM card tray hole to eject the SIM card tray.
• Remove the SIM card tray.

If you accidentally inserted the SIM eject tool into a microphone hole, it's unlikely that damage was done — proceed with caution and inspect the microphone after reassembly.

Power off your device before starting the repair.

When using a heat source (iOpener, hair dryer, heat gun, or hot plate), apply it carefully to avoid overheating and damaging the display or internal battery.

• Apply heat to the bottom edge of the back cover for two minutes.

Secure a suction handle to the bottom edge of the back cover as close to the edge as possible.

• If the back cover is cracked, try lifting it with strong tape or superglue the suction handle in place and allow it to cure.
• Lift the back cover with the suction handle to create a small gap between the back cover and the frame.
• If you have trouble creating a gap, apply more heat to soften the adhesive, following the iOpener instructions to avoid overheating.
• Insert an opening pick into the created gap.

Move the opening pick to the lower left corner and slide it across the adhesive.

Do not remove the opening pick — this will cause the adhesive to seal back up.

Insert the second opening pick at the bottom edge of your phone.

• Slide the pick towards the bottom right corner to cut the adhesive.
• Leave both picks in place to prevent the adhesive from resealing.

Apply iOpener to the right edge of the back cover for 2 minutes.

• Heat the iOpener before use.

Re-apply heat as needed using a heated iOpener.

• Insert an additional opening pick at the bottom right corner.
• Slide the new opening pick along the right edge to cut the adhesive.

Do not remove the existing opening pick from the top right corner.

Apply heat from an iOpener to the top edge of the back cover for 2 minutes.

When slicing near the camera assembly, only insert ~4-5 mm of the opening pick's tip.

• Insert a fourth opening pick underneath the top right corner of your phone.
• Slide the opening pick along the top edge to slice the adhesive.

Leave the opening pick in the top left corner to prevent resealing of the adhesive.

Apply heat from an iOpenterminal to the left edge of the back cover for 2 minutes.

Insert a fifth opening pick under the bottom left corner.

• Slide the opening pick along the left edge of the back cover to cut the remaining adhesive.

Near the power button, insert only the tip (~3-4 mm) to avoid damaging the flex cable.

Remove the back cover.

• Power on your phone and test all functions before reassembly.

Ensure your phone is powered down completely before continuing.

• Use a pair of tweezers or your fingers to remove any adhesive chunks.
• Clean any remaining adhesive residue with high concentration (over 90%) isopropyl alcohol.

If using custom-cut adhesives, refer to the appropriate guide.

For double-sided tape, follow the specified reassembly instructions.

Puncturing or bending the battery can cause chemical leaks or thermal events.

• Insert an opening pick under the NFC antenna and charging coil assembly's left bottom end.
• Slide the opening pick along the bottom left edge to separate the assembly from the battery.

Use a spudger to gently pry the charging coil connector straight up from its socket.

• Pry in a gentle, upward motion only.
• Avoid applying excessive force or pressure on the socket or surrounding components.

Disengage the NFC antenna's connector using a spudger. Gently pry the connector straight up from its socket.

Remove the NFC antenna and charging coil assembly using a Phillips screwdriver.

• Five screws, each 3.9 mm long

Remove the six 3.9 mm Phillips head screws using a Phillips screwdriver.

• Insert the spudger into the gap at the upper-left notch of the loudspeaker.
• Pry upwards using the spudger to release the loudspeaker from its plastic clips.

Remove the NFC antenna and charging coil assembly using either a pair of tweezers or your fingers.

• Use a spudger to gently pry up the battery's press connector.
• The connector should now be disconnected.

Use a spudger to pry up and release the press connectors for both primary and secondary interconnect cables on the motherboard.

• Pry up the primary cable connector first.
• Next, remove the secondary cable connector.

Disconnect the primary and secondary interconnect cables from the daughterboard using a spudger.

Remove the interconnect cables using tweezers or your fingers.

• Place the removed cables aside for later reuse.

Remove the charging board's mounting screws using a Phillips screwdriver.

• The screws are 3.4 mm long and there are three of them.

Insert the pointed spudger under the upper left edge of the daughterboard.

• Pry up gently with the spudger to release the daughterboard.
• Use tweezers or your fingers to pull the daughterboard away from the device and remove it.