Samsung Galaxy Note9 Fingerprint Sensor Replacement

Turn off your phone completely.

Apply gentle heat to the right edge of the phone's back using a hairdryer, heatgun, or iOpener for 1 minute to loosen the adhesive.

Apply a suction handle to the back cover.

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

If the glass is badly cracked, cover it in packing tape before using a suction cup.

• Apply more heat if needed, but do not use excessive force; this could break the glass.

Apply extra care when cutting near the fingerprint sensor to avoid damaging the ribbon cable.

• Be cautious when cutting around the left edge of the phone.
• If the adhesive feels stubborn, apply more heat instead of applying excessive force.

Do not push the opening pick deeper than halfway when approaching the fingerprint sensor or cameras, as this may damage internal parts.

• Begin by applying the opening pick from the center of the device and cut towards the right side.
• Cut the adhesive carefully with the opening pick.

Careful near the corner, as glass is weak.

• Apply more heat if the adhesive becomes stuck.

Insert an opening pick in the upper-right corner.

• Use another opening pick to cut adhesive around the bottom-right corner.
• Leave that opening pick in the phone.

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

Be cautious when approaching the corners, as they are the weakest point.

• Insert an opening pick into the lower-left corner of the rear panel.
• Using a second opening pick, carefully cut along the left edge of the rear panel.
• Avoid inserting the pick more than halfway on the left edge near the fingerprint sensor to prevent damaging the ribbon cable.

It is acceptable for picks to fall out as the back cover separates from the device.

Insert opening pick into upper-left corner of rear panel and carefully cut adhesive.

• Continue to cut along the top edge of the phone, using iOpener, hair dryer, or heat gun as needed for extra heat.

Remove the right side of the rear cover.

• Tilt the cover up along the left edge, exposing the fingerprint sensor ribbon cable.
• Do not remove the fingerprint sensor ribbon cable yet.
• The fingerprint sensor cover may remain attached to the midframe.

• Locate the fingerprint sensor ribbon cable.

• Insert the tip of a spudger into the socket and gently pry the cable up.

• Continue to lift until the cable is free from its socket.

Remove the back cover.

When reinstalling the back cover, be cautious not to damage the new adhesive.

• Use tweezers to remove remaining adhesive from the phone's chassis.
• Clean adhesion areas with high concentration isopropyl alcohol (at least 90%) and a lint-free cloth.

Turn on your phone and test it before installing new adhesive and resealing.

• Apply new adhesive to the back cover, then align one edge of the glass against the chassis.
• Firmly press the glass into place.

Apply heat to the fingerprint sensor using a heat gun, hair dryer, or iOpener. Hold the heat source about 5-7 inches away from the surface until it reaches a temperature that feels slightly too hot to touch.

Insert the opening pick at the rear of the fingerprint sensor.

• Twist the opening pick to pry apart the sensor and back cover.

Remove the fingerprint sensor.

• To install a new fingerprint sensor, peel off as much of the old adhesive with tweezers.
• Clean the area with 90% isopropyl alcohol and a lint-free cloth.

When re-installing an existing fingerprint sensor, ensure the pre-cut adhesive sheet aligns properly to avoid damage or poor contact.