Samsung Galaxy Note20 Ultra Motherboard Replacement

Avoid inserting tools or objects into the wrong holes on your phone.

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

If you insert the tool into a microphone hole by mistake, it is unlikely to cause damage and can be removed without issue.

Completely power off your phone before disassembling it.

• Apply an iOpener to the left side of the rear cover for one minute.
• (Alternatively), use a hair dryer, heat gun, or hot plate, but be cautious not to overheat the device, as it can damage the screen and internal battery.

Apply a suction cup to the heated edge of the rear cover, as close to the edge as possible.

If your back glass is badly cracked, covering it with clear packing tape may be necessary for adhesion.

• Pull up on the suction cup with strong, steady force to create a gap between the rear cover and frame.
• Apply more heat if having trouble; this may vary depending on phone age.

Insert an opening pick into the gap, but no more than 5 mm deep to avoid damaging internal components.

• Slide a pick along the left edge to the bottom left corner, cutting the adhesive.
• Leave the pick in place at the bottom left corner to prevent re-sealing.

Do not insert the opening pick more than 5 mm into the phone, risk of internal component damage.

• Repeat heating and cutting process for three remaining sides of rear cover.
• Insert new opening picks in gaps between existing corner picks.

Leave an opening pick in each corner to prevent re-sealing adhesive.

• Slide an opening pick around perimeter to release missed adhesive.
• Reheat stubborn adhesive as needed.

Remove the rear cover by lifting it straight up.

To avoid damaging surrounding components, only pry under the edge of the wireless charging coil press connector.

• Use the pointed end of a spudger to carefully disconnect the wireless charging coil press connector.

When re-attaching, do not press down on the middle — instead, align and click one side into place, then repeat on the other side. Misaligned connectors can cause permanent damage by bending the pins.

Locate the white press connector at the bottom right of the motherboard shield.

• Insert the pointed end of a spudger into the connector and gently pry it up.
• Once loose, carefully disconnect the white press connector.

Use a Phillips screwdriver to remove the six 4.0 mm screws securing the motherboard shield.

Screws may be difficult to remove due to threadlocker, which can cause them to stick.

• Label and keep track of each removed screw for easy reinstallation.
• Ensure each screw returns to its original location for proper device function.

The motherboard shield has thin, sharp edges — handle with care.

• Use a pair of tweezers to lift up the motherboard shield.
• Grip the motherboard shield carefully with your fingers.

Peel the wireless charging coil up and away from the device.

Careful, as the coil may be held in place by light adhesive.

Careful not to touch any electrical components while prying.

• Insert the pointed end of a spudger into the battery press connector.
• Pry upwards gently to release the battery and safely disconnect it from the circuit.

Use the pointed end of a spudger to gently lift the laser AF sensor press connector.

Remove the earpiece speaker by taking out the four 4.0 mm screws using a Phillips screwdriver.

• Insert the pointed end of a spudger into the triangle-marked hole on the right side of the earpiece speaker.
• Pry up and loosen the earpiece speaker from its clips on the frame's top edge using the spudger.

Remove the earpiece speaker.

Disconnect the front-facing camera cable from the motherboard using the pointed end of a spudger.

Disconnect the display cable using the pointed end of a spudger.

Use the pointed end of a spudger to carefully disconnect the main interconnect cable from the motherboard.

Insert the pointed end of a spudger into the secondary interconnect cable and gently pry it loose from the motherboard.

• Disconnect the touch layer cable from the motherboard using the pointed end of a spudger.
• Next, detach the green press connector from the motherboard with the spudger's pointed tip.

Use the pointed end of a spudger to carefully disconnect the S-Pen press connector from the motherboard.

Remove the motherboard mounting screws with a Phillips screwdriver.

• Screws: 2
• Diameter: 4.0 mm

Insert the flat end of a spudger under the bottom edge of the motherboard.

• Pry carefully to avoid damaging the motherboard or surrounding components.

• Pry up to loosen the motherboard from the frame.

Be extremely cautious not to damage the press connectors or their cables.

• Lift the motherboard carefully out of the phone.

Lower the motherboard slowly to prevent cables from getting trapped underneath.

• Verify clear access at these locations:
  • Secondary interconnect cable
  • Battery cable
  • Main interconnect cable
  • Display cable
  • S-Pen cable
  • Touch layer cable and green press connector
  • Front-facing camera cable

Use the pointed end of a spudger to carefully disconnect the ultra-wide camera from the motherboard.

Disconnect the telephoto camera using the pointed end of a spudger.

Use the pointed end of a spudger to carefully disconnect the wide-angle camera connector from the motherboard.

Avoid bending the ultra wide camera ribbon cable beyond 90 degrees to prevent damage.

• Bend the ultra wide camera ribbon cable away from the motherboard.
• This will allow for the removal of the rear camera assembly.

Locate and carefully remove the rear camera assembly from the motherboard.

• Take note of the existing adhesive on the right side of the telephoto camera.

If reusing a pre-cut adhesive card, follow this guide for proper application to ensure secure reattachment.

Remove all components from the circuit board.

• The only remaining part is the motherboard.