Now Reading: Samsung Galaxy A42 5G Camera Lens Glass & Back Cover Replacement Guide | M42 5G
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Samsung Galaxy A42 5G Camera Lens Glass & Back Cover Replacement Guide | M42 5G
Samsung Galaxy A42 5G Camera Lens Glass & Back Cover Replacement Guide | M42 5G
If the camera lens glass on your Samsung Galaxy A42 5G is cracked, scratched, or shattered, photo quality will suffer—causing blurry images, lens flares, or inability to use the camera altogether. Instead of replacing the entire back cover, you can replace only the lens glass, which is much more affordable and quick when done correctly.
This complete guide walks you through the process with proper steps, repair difficulty, reasons for repair, and troubleshooting.
Repair Difficulty
- Device Type: Smartphone
- Type of Repair: Rear Camera Lens Glass Replacement
- Repair Difficulty: 3/10 – Easy to Moderate
- Estimated Time: 20–30 Minutes
Reasons for Camera Lens Replacement
- Cracked or shattered lens glass
- Photos appear blurry or foggy
- Camera autofocus not working due to debris
- Scratch damage affecting picture quality
- Lens area collecting dust or moisture
- Lens frame broken or loose
Before You Begin
Compatibility and Model Numbers
- Samsung Galaxy A42 5G
- Samsung Galaxy M42 5G
This repair guide based on Samsung Galaxy A42 5G Model.
Model Numbers | SM-A426B, SM-A426B/DS, SM-A4260, SM-A426U, SM-A426U1, SM-A426N, SM-M426B, SM-M426B/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/469eXqF
- Screen – https://amzn.to/48bD8XU
- Other Parts – https://amzn.to/4m0Ki4D
- Silicone Work Repair Mat https://amzn.to/45Emz5l
Protect Your Galaxy A42 5G
- Protector For The Screen https://amzn.to/4gbx7Nb
- Best Rated Case https://amzn.to/3JSjwyg
How to Replace Samsung Galaxy A42 5G Camera Lens Glass – Step-by-Step
Step 1: Heat the Back Cover
To access the inner side of the camera lens:
- Heat around the back cover edges using a heating pad, heat gun, or hairdryer.
- Warm until the adhesive becomes soft.
Avoid overheating the middle of the phone.
Step 2: Remove the Back Cover
- Use a suction cup to lift a corner slightly.
- Insert a plastic pry card and gently slide it around the edges.
- Remove the back cover carefully without bending it.
Step 3: Heat the Camera Lens Area
- Apply gentle heat to the camera lens area from the front side.
- This softens the adhesive holding the broken lens in place.
Step 4: Remove the Broken Camera Lens
- Push the lens from the rear side outward.
- If the glass is heavily cracked, remove pieces carefully using tweezers.
Take your time—avoid scratching the camera sensor.
Step 5: Clean the Surface
- Remove remaining adhesive and dust.
- Ensure the lens rim is perfectly clean for proper sticking.
Step 6: Install the New Camera Lens Glass
You have three replacement options:
- Camera Lens with Frame
- Camera Lens Only (no frame)
- Back Cover with Lens Pre-Installed
If using lens ONLY:
- Apply adhesive around the rim.
- Place the new lens precisely.
If using lens WITH FRAME:
- Heat the rear of the lens area again.
- Push the old frame out from the front.
- Place the new frame with glue.
Step 7: Reattach the Back Cover
Before sealing:
- Check whether enough adhesive remains.
- If not, apply fresh B7000 glue or new pre-cut adhesive.
Press down firmly to align the cover properly.
Step 8: Secure the Back Cover
- Use bonding clips or rubber bands to apply uniform pressure.
- Leave for some time to ensure good adhesion.
FAQ (Frequently Asked Questions)
Q1: Will replacing the camera lens affect camera quality?
No—if the new lens is installed correctly, image quality will be restored to normal.
Q2: Do I need to open the whole phone for this repair?
You only need to remove the back cover; no need to remove the battery or internal components.
Q3: Can I replace the camera lens without heating?
Heating is recommended to avoid cracking the back cover or damaging the frame.
Q4: Is it necessary to remove the lens frame?
Only if the frame is damaged or if you bought a lens-with-frame replacement.
Q5: Will B7000 glue damage the phone?
No, B7000 is commonly used for mobile repairs and is safe when used sparingly.
Troubleshooting Guide
Q1: Camera is still blurry after replacement.
- Check for fingerprint smudges or leftover adhesive on the lens.
- Clean the lens gently with a microfiber cloth.
Q2: Camera not focusing.
- Ensure no dust entered the module.
- Try gently tapping the device to release loose debris.
Q3: Lens not sitting flush.
- The old adhesive may not be fully removed—clean again and reinstall.
Q4: Back cover not sticking tightly.
- Apply additional B7000 glue.
- Use bonding clips for 1–2 hours.
Q5: Camera shows black spots.
- Dust may have entered during repair. Remove the lens and clean again.
This completes your Samsung Galaxy A42 5G camera lens replacement guide. Follow the steps carefully and your device should charge and function normally again. If you have questions, feel free to add them to your blog’s comment section.
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