Samsung Galaxy S21 Plus Screen and Battery Assembly Replacement

Inserting tool in wrong hole may not damage phone but can damage microphone.

• Insert a SIM eject tool, bit, or straightened paper clip into the SIM card tray hole on top edge.
• Press tool into hole to eject the SIM card tray.
• Remove the SIM card tray.

Power off your device before starting repairs.

Apply heat carefully as the display and internal battery can be damaged by excessive heat.

• Heat an iOpener for two minutes and apply it to the bottom edge of the back cover.
• Alternatively, use a hair dryer, heat gun, or hot plate but avoid overheating.

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, the suction handle may not stick — try lifting it with strong tape or superglue the suction handle in place and allow it to cure before proceeding.

• 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 further soften the adhesive.
• Follow the iOpener instructions to avoid overheating.

Insert an opening pick into the gap you created.

Insert the opening pick into the bottom left corner and gently pry the adhesive.

Make sure the opening pick remains in place to prevent the adhesive from re-sealing.

Insert a second opening pick at the bottom edge.

• Slide the pick to the bottom right corner, slicing the adhesive.
• Leave both opening picks in place to prevent resealing.

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

Reapply heat to hardening adhesive with iOpener.

• Insert a third opening pick at the bottom right corner of your phone.
• Caution:

  Slide the opening pick along the right edge to avoid damage.

• Leave the opening pick in the top right corner to prevent resealing.

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

Insert only the tip (~4-5 mm) of the opening pick near the camera assembly to avoid damage.

• Place a fourth opening pick under the top right phone corner.
• Slide the pick along the top edge to cut the adhesive.

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

Apply iOpener heat 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 to slice the remaining adhesive.

When slicing near the power button, insert only the tip of the opening pick (~3-4 mm) to avoid damaging the power and volume button flex cable.

Remove the back cover.

Power on your phone and test all functions during reassembly.

Ensure your phone is completely powered down before continuing work.

• Use tweezers or fingers to remove any adhesive chunks.
• Clean the area with high concentration (over 90%) isopropyl alcohol to remove adhesive residue.

For custom-cut adhesives, follow additional guidance in the relevant guide.

If using double-sided tape, consult the respective installation guide for specific instructions.

Risk of leakage or thermal event if battery is punctured or bent.

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

Disconnect the charging coil using a spudger. Pry the connector straight up from its socket.

Disconnect the NFC antenna connector by prying it straight up with a spudger.

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

• Five 3.9 mm-long screws must be removed.

Remove the six 3.9 mm-long screws holding the loudspeaker assembly using a Phillips screwdriver.

Insert the spudger into the gap at the upper-left corner of the loudspeaker.

• Pry gently upwards using the spudger to release the loudspeaker's clips.

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

• Use a spudger to carefully disconnect the battery's press connector.

• Use a spudger to pry up the primary and secondary interconnect cables from their press connectors.

• Use a spudger to pry up the press connectors for the primary and secondary interconnect cables on the daughterboard.

Disconnect and set aside the interconnect cables for later reuse.

• Use tweezers or your fingers to carefully remove the cables.

Remove the charging board by unscrewing the three 3.4mm screws with a Phillips screwdriver.

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

• Pry up to release the daughterboard from its recess.
• Use tweezers or your fingers to pull the daughterboard up and away from the bottom of the device.
• Remove the daughterboard completely.

Remove the display cable's press connector with a spudger.

Insert the spudger tip into the connector gap.

• Pry upwards on the connector, taking care not to damage the surrounding circuit board.
• The earpiece speaker's press connector should now be disconnected.

Remove the earpiece speaker assembly by unscrewing seven 3.9 mm PH screws using a Phillips screwdriver.

• Insert a spudger between the earpiece speaker and the frame.
• Pry up with the spudger to release the earpiece speaker from its plastic clips.

• Be careful not to damage the earpiece speaker or surrounding components.

• Remove the earpiece speaker.
• Set the speaker aside, as you'll reuse it during reassembly.

Insert a spudger between the antenna's and power button cable's press connectors.

• Pry up the 5G mmWave antenna's press connector using the spudger.
• Repeat for the power button cable's press connector next to it.

• Use a spudger to pry up the front camera's press connector.

Disconnect the orange press connector with a spudger.

• Pry up the right 5G mmWave antenna's press connector using the spudger.
• Remove it from its socket.

Remove the motherboard securing screw using a Phillips screwdriver.

Be careful not to damage the surrounding circuitry.

• Use tweezers or your fingers to gently bend the left 5G mmWave antenna cable away from the frame.
• Repeat for the power button cable.

Use tweezers or your fingers to gently bend the two connectors away from the right edge of the motherboard.

Insert the spudger tip between the motherboard and frame.

• Pry up with the spudger to release the motherboard from its recess.
• Remove the motherboard.
• Set it aside for reassembly later.

Be cautious of overheating — apply heat for no more than 90 seconds.

• Position the iOpener on the front camera.
• Allow it to remain heated for exactly 90 seconds before proceeding.

Insert a spudger into the gap between the frame and the front camera.

• Pry up with the spudger to separate the front camera from the frame.
• If having trouble, apply more heat.
• Remove the front camera using tweezers or your fingers.

Careful not to damage the front camera during removal.

Set the camera aside for reassembly.

Remove the front camera from its packaging.

• Peel off the adhesive liner from the camera's back.
• Pull on the tab using tweezers or your fingers to expose the adhesive layer.
• Insert the front camera and apply pressure to secure it in place.

Remove the Phillips screwdriver and unscrew the four screws (3.4 mm long) securing the 5G mmWave antennas.

Locate the right 5G mmWave antenna bracket's bottom screw tab.

• Pry up the tab using a spudger's point.
• Remove the right 5G mmWave antenna with tweezers or your fingers.
• Set the antenna aside for reuse during reassembly.

• Pry up the left 5G mmWave antenna bracket's bottom screw tab using a spudger point.
• Remove the left 5G mmWave antenna with tweezers or your fingers.

The antenna will be reused during reassembly. Set it aside securely.

Remove the display cable's press connector using a spudger.

• Pry up the connector.
• Disconnect it completely.

Remove the display cable using tweezers or your fingers.

• Set the display cable aside for later reinstallation.

Remove the outer casing to reveal the screen and battery assembly.