Phone · Samsung · Galaxy S24
Samsung Galaxy S24 Fingerprint Sensor Repair
Fingerprint Sensor Repair guide for the Samsung Galaxy S24
Before you begin
Tools
- Heat gun or hair dryer
- Suction cup tool
- Plastic prying tools
- Precision screwdriver set (Phillips #000, #00)
- Spudger tool
- Tweezers
- Clean workspace mat
Parts / materials
- Replacement Galaxy S24 fingerprint sensor flex cable
- Pre-cut back glass adhesive sticker
- Isopropyl alcohol (99%)
- Lint-free cleaning cloth
Safety
- Power off the Galaxy S24 completely before starting the repair process.
- Disconnect the battery cable before removing or installing internal components.
- Wear safety glasses to protect your eyes when working near glass edges.
Overview
Step-by-step
- 1
Heat the Back Glass
2 minApply a heat gun set to low heat around the outer edges of the rear glass for two minutes to soften the factory adhesive.
- 2
Attach Suction Cup
1 minPlace a suction cup near the bottom edge of the back glass and pull upward firmly to create a slight gap.
- 3
Insert Opening Pick
1 minInsert a thin plastic opening pick into the gap created between the glass back panel and the aluminum frame.
- 4
Slice Rear Adhesive
3 minSlide the pick around all four perimeter edges to slice through the adhesive holding the rear panel.
- 5
Remove the Back Glass
1 minLift the back glass off the chassis and set it on a clean surface.
- 6
Unscrew Upper Cover Screws
2 minUse a Phillips #000 screwdriver to remove the screws securing the upper motherboard shield and wireless charging coil.
- 7
Detach Wireless Charging Assembly
2 minGently pry up and peel the wireless charging pad and NFC coil away from the motherboard.
- 8
Disconnect the Battery Flex
1 minUse the flat end of a plastic spudger to pop the battery connector straight up from the motherboard.
- 9
Unscrew Lower Speaker Module
2 minRemove the Phillips screws holding down the lower loudspeaker assembly at the bottom of the device.
- 10
Remove Loudspeaker Module
1 minInsert a spudger under the speaker housing and lift it clear of the lower frame.
- 11
Disconnect Fingerprint Sensor Flex
2 minLocate the ultrasonic fingerprint sensor ribbon cable connector on the lower mainboard array and gently detach it using a spudger.
- 12
Replace Fingerprint Sensor Cable
3 minUse tweezers to unseat the damaged fingerprint sensor cable module from its recess and position the replacement sensor correctly.
- 13
Reconnect Cables and Test
3 minSnap the fingerprint sensor flex, speaker module, and battery cable back into place to test fingerprint functionality before final assembly.
- 14
Apply New Back Glass Adhesive
4 minClean remaining adhesive off the frame with isopropyl alcohol, lay down new pre-cut adhesive, and press the back glass firmly onto the frame.
After your Samsung Galaxy S24 fingerprint sensor repair
Power the Galaxy S24 back on and test the fingerprint sensor repair function before you put every screw away. Check touch/display response, charging, cameras, buttons, and wireless as relevant to this repair. If something fails after closing the device, reopen carefully and reseat the connectors for this Samsung Galaxy S24 job before assuming the part is defective. Keep leftover adhesive and screws labeled in case you need a second pass.
Keep learning
Explore more Samsung Galaxy S24 repair context in the encyclopedia, or open related DIY guides.
