Samsung Galaxy Note20 Daughterboard Replacement

Power off your phone completely before disassembly.

• Apply a preheated iOpener to the left side of the rear cover for one minute.
• Alternatively, use a hair dryer, heat gun, or hot plate with caution:

• Do not overheat the phone.
• The screen, internal battery, and plastic rear cover are susceptible to heat damage.

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

• Pull up on the suction cup with strong, steady force to create a gap between the rear cover and the frame.
• If you encounter resistance, try applying more heat and repeating the process.

Do not insert an opening pick more than 5 mm into the phone to avoid damaging internal components.

Do not insert the opening pick more than 5 mm into the phone.

• Slide the opening pick along the left edge towards the bottom left corner to cut through the adhesive.
• Leave the pick in place at the bottom left corner, preventing re-adhesion.

Insert new opening picks into gaps created by existing ones in corners.

• Heat and cut adhesive along each side, working from initial cuts.
• Leave a pick in each corner to prevent re-sealing.

If rear cover remains attached after all sides are cut, reslice adhesive with an opening pick.

Remove the rear cover by lifting it straight up.

Remove the six 4.0 mm Phillips screws securing the motherboard shield using a Phillips screwdriver.

• Be aware: If these screws have not been removed before, they may be stuck due to threadlocker.
• Keep track of each screw and ensure it is reinstalled exactly where it was originally located.

Risk of accidental damage from sharp edges.

• Use a pair of tweezers to lift up the motherboard shield.
• Flip the shield back, taking care not to touch its thin and sharp edges.

Use a spudger to pry up the battery press connector from underneath its edge.

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

Never press down on the middle of the connector — risk of pin bending and permanent damage.

• To reattach, align carefully and press one side until it clicks into place.
• Repeat on the other side; do not press the center.

Use a spudger with the pointed end to gently pry up the wireless charging coil press connector.

Be careful not to damage the motherboard shield or the surrounding components.

Grip the motherboard shield firmly.

• Caution: The wireless charging coil has light adhesive, so be gentle when handling.
• Peel the wireless charging coil away from the device with your fingers.
• Remove the wireless charging coil once it is free.

Unscrew the loudspeaker with a Phillips screwdriver, removing the five 4.0 mm screws.

Risk of damaging the battery — puncture or bending can cause chemical leakage or thermal events.

• Insert the pointed end of a spudger into the top left screw hole near the loudspeaker.
• Pry up and detach the loudspeaker from the frame using the spudger.
• Lift and remove the loudspeaker with a pair of tweezers.

Disconnect the main interconnect cable from the daughterboard using the pointed end of a spudger.

Locate and carefully release the secondary interconnect cable from its connector on the daughterboard, using the pointed end of a spudger.

Disconnect the secondary interconnect cable from the motherboard using the pointed end of a spudger.

Disconnect the main interconnect cable using the pointed end of a spudger.

Remove the 2.9 mm Phillips screw securing the daughterboard to the .

Locate the three spring connectors on the frame's bottom edge.

• Insert a pointed spudger under the right side of the daughterboard near the screw boss.
• Use the spudger to gently pry up and detach the daughterboard from the frame.

Be cautious not to damage small surface-mounted components underneath the daughterboard.

Remove the daughterboard with a pair of tweezers.