Samsung Galaxy Note9 Motherboard Replacement

Insert the SIM card eject tool directly into the SIM card tray's hole.

Ensure proper alignment before proceeding — risk of damage to the SIM card tray.

• Press firmly to eject the SIM card tray.

• Remove the SIM card tray.
• The SIM card will come out freely.

Power off your phone.

• Apply gentle heat to the right edge of the phone's back using a hairdryer, heatgun, or an iOpener for approximately one minute to loosen the adhesive.

Apply a suction handle to the back cover.

• Lift with the suction handle to create a gap between the back cover and the phone's frame.
• Insert an opening pick into the gap.

If the glass is badly cracked, cover it in packing tape for better suction adhesion.

Avoid applying excessive force; if adhesive won't budge, apply more heat instead.

Risk of damage to the ribbon cable exists when cutting along the left edge.

• Identify and carefully cut around the top edge, as well as near the camera bezel.
• When cutting along the left edge, avoid applying excessive force to prevent damaging the ribbon cable.
• If adhesive is stubborn, apply more heat instead of additional pressure.

Careful around the fingerprint sensor and camera areas — avoid over-insertion of the opening pick to prevent damage.

• Begin at the center of the device with an opening pick.
• Cut the adhesive along the right side, moving up from the center.

Avoid the lower right edge as it is prone to breakage.

• Insert an additional opening pick at the top right for leverage.
• Use a second opening pick to cut adhesive at bottom right corner.
• Leave this pick in the phone for future reference.

Apply heat to the left side of the rear panel using a heat gun, hair dryer, or an iOpener for 3 minutes.

Be cautious near corners, as glass is most prone to damage.

• Insert an opening pick into the lower-left corner of the rear panel.
• Using another opening pick, carefully cut adhesive along the left edge of the rear panel.
• Avoid inserting picks more than halfway on the left edge near the fingerprint sensor to prevent damaging the ribbon cable.
• It is normal for opening picks to fall out as the back cover separates.

Apply a small amount of heat with an iOpener, hair dryer, or heat gun to loosen the adhesive.

• Insert the opening pick into the upper-left corner of the rear panel and carefully cut the adhesive.
• Continue cutting the adhesive along the top edge of the phone until it is completely separated.

Remove the right side of the rear cover.

• Tilt the cover up along the left edge to expose the fingerprint sensor ribbon cable.
• Leave the fingerprint sensor ribbon cable connected for now.

The fingerprint sensor cover may remain attached to the midframe.

Locate the fingerprint sensor ribbon cable, then use the tip of a spudger to carefully pry it up and out of its socket.

Remove the back cover.

Ensure adhesion is clean before applying new adhesive.

• Peel away remaining adhesive with tweezers.
• Clean adhesion areas with 90% isopropyl alcohol and a lint-free cloth.

Test phone after repair before reinstalling new adhesive.

• Apply new adhesive to the back cover.
• Line up one edge of the glass against the phone chassis.
• Firmly press the glass into the phone.

Remove the nine 4 mm screws that secure the upper midframe using a Phillips screwdriver.

Insert the tip of a spudger into the upper-left corner of the upper midframe.

• Pry the upper midframe out from the phone.
• The upper midframe snaps in and out of place, so it may require some force to remove.

Peel the wireless charging coil off the battery, starting with the left side.

The adhesive is weak, but excessive force can cause damage. Use an opening pick to gently cut it if necessary.

• During reassembly, snap the midframe into place first.
• Then adhere the wireless charging coil.

Disconnect the orange ribbon cable from the motherboard using the tip of a spudger.

Remove the nine 4 mm Phillips screws from the plastic cover next to the battery.

Remove the plastic cover adjacent to the battery.

Insert spudger tip into lower midframe's top edge.

Lower midframe may snap back in place; be careful not to break any clips.

• Pry the lower midframe away from phone using spudger.
• The lower midframe should release and come out easily.

• Use the tip of a spudger to gently pry the front camera connector upwards, releasing it from its socket.
• Next, use a pair of tweezers to carefully remove the front camera.

Disconnect the iris scanner from the motherboard using the tip of a spudger.

• Remove the iris scanner using a pair of tweezers.

Use a spudger to carefully pry the front sensor connector from its socket.

Disconnect the display cable from the motherboard using the flat end of a spudger.

Disconnect the touchscreen cable using the flat end of a spudger.

Use the flat end of a spudger to disconnect the charging assembly from the motherboard.

Remove the three 4 mm Phillips screws securing the motherboard.

• The screw locations are indicated by triangles next to the holes on the motherboard.

Use a spudger to gently lift the motherboard from the upper-left corner.

• Remove the motherboard with care.
• Move ribbon cables out of the way as needed.

• Do not pull the motherboard if it becomes snagged on any cables — risk of damage.