Samsung Galaxy S20 Motherboard Replacement

Insert a SIM card eject tool, bit, or straightened paperclip into the SIM tray hole located at the top edge next to the plastic antenna band.

If inserted incorrectly, do not worry as the microphone and ingress gasket are protected from harm.

• Press firmly to eject the tray.

Remove the SIM card tray.

• The SIM card will fall out easily.
• When reinserting, ensure it is aligned with the tray properly.

If the rubber gasket around the SIM tray is damaged or missing, replace it to prevent water and dust damage to your phone's internal components.

Unplug your phone from power source.

• Power off your phone completely.
• iOpener: Heat for 2 minutes, then apply to back cover's bottom edge.
• Alternatives: Use a hair dryer or heat gun, but be cautious not to overheat the phone. This may cause damage to display and internal battery.

Avoid applying excessive force with the pick, which may crack the back cover glass.

• Attach a suction cup to the phone's center bottom edge for leverage.
• Apply clear packing tape over cracked screens if necessary, or use strong tape instead of the suction cup as an alternative.

As a last resort, superglue the suction cup to the broken screen.

• Pull on the suction cup with steady force until you create a gap between the back cover and frame.
• Insert an opening pick into the gap carefully.

Reheating the iOpener may be necessary to loosen tight tolerances; this process can take multiple attempts before succeeding.

• If a gap still eludes you, reapply heat and try again with the suction cup.

Slide the pick back and forth along the bottom edge to slice through the adhesive.

Avoid cutting near the corners of the phone where the glass is curved, as this can cause the glass panel to crack.

• Leave your opening pick in the seam to prevent resealing.

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

Apply a suction cup near the left edge, as close to center as possible.

• Pull on the suction cup with strong, steady force to create a gap between the back cover and frame.
• Insert an opening pick into the gap, keeping its point underneath the glass's edge.

Due to tight tolerances, creating a gap may take multiple attempts.

• If you have trouble, apply more heat and try again.
• Alternatively, add a few drops of high concentration (over 90%) isopropyl alcohol into the seam to loosen adhesive.

Avoid excessive force with the pick to prevent cracking the back cover glass.

Insert the pick further under the glass's edge and tilt it downwards.

Continue until the back cover's adhesive is fully separated.

Be careful when sliding the pick across the ridge around the volume and power buttons, as this area is more susceptible to cracking.

• Slide a pick along the left edge of the phone to separate the back cover's adhesive.
• Leave the pick in place near the top left corner under the glass to prevent resealing.

Excessive heat can cause damage to the display and internal battery.

• Apply a heated iOpener to the right edge of the back cover for two minutes.
• Alternatively, use a hair dryer, heat gun, or hot plate with caution, but avoid overheating the phone.

Apply a suction cup to the phone's back near the center of the right edge.

• Pull on the suction cup with strong, steady force to create a gap between the back cover and frame.
• Insert an opening pick into the gap.
• Tilt the opening pick downward to fully insert it underneath the back cover.

Slide a pick along the right edge of the phone to separate the back cover's adhesive.

• Leave the pick under the right edge of the glass near the top for reference and prevent resealing.
• The other picks may be dislodged; if so, set them aside as they won't affect future removal.

Apply a iOpener to the top edge of the back cover and heat it for two minutes.

The curved glass near the corners is prone to cracking — handle with care.

• Start at the right edge and slide the pick towards the top right corner.
• Continue along the top edge, working around to the left, until the adhesive is fully separated.

If slicing becomes difficult, stop and reapply heat before proceeding.

Slowly lift the back cover.

• Use opening picks to slice any remaining adhesive.
• Remove the back cover.

Power on your phone and test all functions before reassembling, then power down completely.

• Use tweezers or fingers to remove adhesive chunks.
• Apply heat if necessary for separation.

For custom-cut adhesives: follow this guide.

For double-sided tape: follow this guide.

Remove the motherboard bracket by unscrewing the five 4mm screws using a Phillips #00 screwdriver.

Make sure to keep track of each screw and reattach it in its original location.

Use tweezers to carefully lift the motherboard bracket away from the plastic midframe.

Do not fully remove the bracket yet, as it is still connected to the wireless charging coil.

Be careful not to damage the wireless charging coil.

• Peel the wireless charging coil away from the device with care.
• Remove the coil completely, taking note that it's connected via spring contacts.
• During reassembly:
• Refasten the motherboard bracket screws to align the coil correctly.
• Firmly press the rest of the coil into place for proper adhesion.

Be cautious when disconnecting the battery connector — risk of damaging nearby components.

• Use a spudger to pry up and disconnect the battery connector.
• Take care not to dislodge small surface-mounted parts around the socket.

Remove the loudspeaker with a Phillips #00 screwdriver.

• Remove the five screws, each 4 mm long, securing the loudspeaker and lower midframe.

Insert the tip of a spudger or tweezers into the notch on the top left corner of the midframe.

• Pry up carefully to release the clips holding it in place.
• Remove the loudspeaker and lower midframe.

Use a spudger to disconnect the main and auxiliary flex cables from the daughterboard.

• To reconnect, align the press connector carefully and press down on one side until it clicks into place.
• Repeat on the other side; do not press in the middle.

Misaligned connectors can cause permanent damage to the pins.

• Use a spudger to gently pry up the main and auxiliary flex cables.
• Disconnect them from the motherboard.

Remove the main and auxiliary flex cables. Gently peel them up.

Use a spudger to carefully pry up the main display flex cable from the motherboard, then gently disconnect it.

Peel up the display flex cable and bend it aside to clear the motherboard and battery.

Remove the upper midframe using a Phillips #00 screwdriver.

• Four 4 mm-long screws need to be removed.

Locate the notch on the right side of the upper midframe.

• Pry up gently using a spudger
• The clips will release, allowing you to remove the upper midframe

Use a spudger to gently pry up and release the side button flex cable from the motherboard.

• Bend the cable aside using a pair of tweezers.

Disconnect the front facing camera flex cable from the motherboard using a plastic spudger.

• Bend the cable away from the motherboard to clear any potential obstruction.

Disconnect the front-facing sensor array cable from the motherboard.

Bend the disconnected cable out of the way to prevent damage or obstruction.

• Remove two screws using a Phillips #00 screwdriver:
• One 4mm-long screw
• One 3mm-long screw

Insert the flat end of a spudger into the bottom left corner of the motherboard assembly and pry gently.

• The board should now release from the phone body.
• Remove the motherboard assembly.

Risk of damage if not properly disconnected.

• Use a spudger to pry up and disconnect the ultrawide camera connector from the motherboard.
• Remove the ultrawide camera module.
• The module is lightly secured; wiggle it free.

• Pry up and disconnect the telephoto and wide-angle camera connector using a spudger.
• Remove the rear-facing camera module.

Remove all components and parts from the chassis.

The motherboard will be the only remaining component inside the case.