Now Reading: Samsung Galaxy A32 5G Power Button Fingerprint Replacement Guide | M32 5g
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Samsung Galaxy A32 5G Power Button Fingerprint Replacement Guide | M32 5g
Samsung Galaxy A32 5G Power Button Fingerprint Replacement Guide | M32 5g
If your Samsung Galaxy A32 5G or M32 5G is experiencing unresponsive power buttons or fingerprint sensor issues, it is often due to worn-out or faulty internal components. Replacing these parts restores proper device control and security functionality without replacing the entire phone.
This detailed guide will walk you through a safe, step-by-step process for replacing the power button and fingerprint sensor.
Repair Difficulty
⭐⭐⭐☆☆ (3/5 – Moderate)
Estimated Time: 30–45 minutes
Type of Device: Android Smartphone
Type of Repair: Internal Component Replacement – Power Button & Fingerprint Sensor
Reasons for Replacement
- Power button not responding or stuck
- Fingerprint sensor not unlocking
- Phone cannot wake or lock using buttons
- Physical damage from drops or liquid exposure
- Internal flex or connector issues
Replacing these components is cost-effective and restores full functionality.
Before You Begin
Compatibility and Model Numbers
- Samsung Galaxy A32 5G
- Samsung Galaxy M32 5G
- Samsung Galaxy A32 – The Design is slightly different
This repair guide based on Samsung Galaxy A42 5G Model.
Model Numbers | SM-A326B, SM-A326B/DS, SM-A326BR/DS, SM-A326BR, SM-A326U, SM-A326W, SM-A326U1, SM-A326K, SCG08, SM-S326DL, SM-M326B, SM-M326B/DS
Tools Required
- Mobile phone heating pad or hairdryer/heat gun
- Plastic pry tool / card pry
- Suction cups
- Phillips #00/#000 screwdrivers
- Tweezers (for connectors)
- B7000 glue or double-sided adhesive (for back cover)
- Rubber bands or bonding clips to secure the back cover
Using proper tools reduces the risk of damaging the phone.
How to Find Tools and Parts
- Heating pad – https://amzn.to/3H0tHzJ
- Portable Heat Gun – https://amzn.to/4mszih1
- Clamps https://amzn.to/3GYJT4w
- STREBITO 142 Piece Repair Tool Kit https://amzn.to/3UO1jUx
- Glue | Adhesive https://amzn.to/46exVxe
- Compatible Parts –
- Battery – https://amzn.to/46batzW
- Screen – https://amzn.to/46b3uGY
- Other Parts – https://amzn.to/486qUjo
- Silicone Work Repair Mat https://amzn.to/45Emz5l
Protect Your Galaxy A32 5G
- Best Rated Case https://amzn.to/4glZPek
- Protector For The Screen https://amzn.to/4nEKdFh
Step-by-Step Replacement Guide
Step 1: Power Off the Device
Turn off your phone completely before starting the repair.
Step 2: Remove the Back Cover
The back cover is secured with adhesive. Heat the edges using a heating pad, heat gun, or hairdryer until the adhesive softens. Use a suction cup to create a small gap and slide a plastic card or pry tool to detach the back cover carefully.
Step 3: Remove the Midframe
- Remove the SIM tray.
- Unscrew the screws securing the midframe.
- Use a plastic pry tool to release clips and lift the midframe from the body.
Step 4: Remove the Faulty Power Button & Fingerprint Sensor
- Disconnect the battery connector before working on internal components.
- Carefully remove the old power button and fingerprint sensor flex from their position.
- Ensure connectors are fully detached from the logic board.
Step 5: Install the New Power Button & Fingerprint Sensor
- Place the new power button and fingerprint sensor flex in the correct position.
- Secure the connectors to the logic board carefully.
- Verify alignment before closing the midframe.
Step 6: Reassemble the Midframe
- Position the midframe back on the device.
- Secure all screws.
- Reconnect the fingerprint sensor flex if not already connected.
Step 7: Test Functionality Before Closing
Power on the device to check:
- Power button functionality (press to wake and lock)
- Fingerprint sensor unlocking
- Other buttons and sensors for proper response
Ensure everything is working before sealing the back cover.
Step 8: Seal the Back Cover
- Apply fresh B7000 glue or double-sided tape if needed.
- Press the back cover firmly into place.
- Use bonding clips or rubber bands for 30–60 minutes to secure adhesion.
Frequently Asked Questions (FAQ)
Q1: Why is my power button not responding?
The button or its flex cable may be damaged, obstructed, or disconnected internally. Replacement restores proper functionality.
Q2: Will replacing the fingerprint sensor affect my data?
No, your stored fingerprint data and personal information remain intact.
Q3: Can I reuse the old power button?
If the button is physically damaged or worn out, reuse is not recommended. Always install a new component.
Q4: What if the fingerprint sensor still doesn’t work after replacement?
Check that the flex cable is correctly seated and connected. Test the sensor before fully closing the device.
Troubleshooting
Power Button Still Unresponsive
Causes: Loose connector or misaligned flex cable.
Solution: Reopen the device and ensure the connector is fully engaged.
Fingerprint Sensor Not Recognized
Causes: Connector not seated properly or sensor misaligned.
Solution: Reseat the sensor and test before sealing the midframe.
Back Cover Not Sticking
Causes: Insufficient adhesive or uneven placement.
Solution: Apply new B7000 glue or double-sided tape, then use bonding clips or rubber bands.
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