How to Replace a Fingerprint Display Screen
The Ultimate Guide to Replacing a Fingerprint Display Screen: 15 Expert Steps + Pro Tips
🔍 What is a Fingerprint Display Screen?
A fingerprint display screen integrates a biometric scanner beneath the screen glass, allowing users to unlock their phones by placing a finger on the display itself. This advanced technology is commonly found in modern Samsung, Huawei, OnePlus, and Xiaomi smartphones.
These displays are typically OLED or AMOLED, enabling light to pass through the screen and detect fingerprint patterns. While sleek and secure, these screens are delicate and challenging to replace without damaging the sensor or affecting display quality.
📱 Which Phones Use Under-Display Fingerprint Sensors?
Here’s a list of popular smartphones that use under-display fingerprint technology:
- Samsung Galaxy S21, S22, S23, Z Fold, Z Flip series
- OnePlus 7T Pro, 8, 9, and newer models
- Xiaomi Mi 11, Mi 12 series
- Huawei Mate 30 Pro, P40 Pro, and later models
- Google Pixel 6, 7 (certain models)
If your device is on this list and you’ve got a cracked screen or fingerprint sensor failure, it may require a precision screen replacement.
🔧 Can You Replace a Fingerprint Display Screen Yourself?
Technically yes, but it’s not recommended unless you’re experienced. These screens are:
- Fragile – and easy to damage during removal
- Expensive – especially if genuine parts are used
- Sensitive – improper installation can render the fingerprint sensor useless
A small mistake could cost you more than the initial repair. That’s why many users in Sydney trust Sydney CBD Repair Centre for professional repairs with same-day service and warranty.
🧰 Tools You’ll Need for a Screen Replacement
To replace a fingerprint display screen safely, you’ll need the following tools:
- Heat gun or screen separator
- Suction cup and plastic pry tools
- Phillips and Pentalobe screwdrivers
- ESD-safe tweezers
- Isopropyl alcohol (90%+)
- Adhesive remover
- Anti-static gloves
- Genuine screen replacement (OEM quality)
Make sure to work in a dust-free, well-lit environment to avoid damaging internal components.
🛠️ Step-by-Step Guide to Replace a Fingerprint Display Screen
✅ Step 1: Power Off and Prepare Your Workspace
- Power down your device completely.
- Place the phone on a clean, flat surface.
- Wear anti-static gloves to protect sensitive components.
🧯 Step 2: Open the Device Carefully
- Use a heat gun around the edges to soften adhesive.
- Gently apply suction and insert a plastic pry tool.
- Slowly separate the screen from the frame—don’t rush.
🔌 Step 3: Disconnect the Battery and Components
- Unscrew internal covers.
- Disconnect the battery and any display or fingerprint cables.
- Handle flex cables with care to prevent tearing.
💥 Step 4: Remove the Broken Display
- Gently peel away the damaged screen using adhesive remover if needed.
- Clean the surface thoroughly to prepare for the new screen.
📲 Step 5: Install the New Fingerprint Display
- Align the new screen carefully.
- Connect the fingerprint sensor cable exactly as the original.
- Apply appropriate adhesive for waterproof sealing.
🔄 Step 6: Reconnect and Test
- Reconnect the battery and internal components.
- Boot up the phone and test the display and fingerprint functionality.
- Reassemble the phone carefully, ensuring everything fits snugly.
⚠️ Common Mistakes to Avoid During Replacement
- Using cheap aftermarket screens—they may not support fingerprint recognition
- Applying too much pressure—can damage the OLED panel
- Not cleaning adhesive residue—can affect screen alignment
- Forgetting to test before sealing—results in repeat teardown
🧑🔧 Why Professional Replacement is Recommended
Replacing a fingerprint display screen is not just about swapping glass. It involves:
- Re-calibration of the fingerprint sensor
- Careful adhesive management for waterproofing
- Ensuring zero damage to OLED layers or logic board
At Sydney CBD Repair Centre, we use genuine parts and follow a refined process to restore your phone to factory standards, backed by a 90-day warranty.
🛠️ How We Replace Fingerprint Displays at Sydney CBD Repair Centre
- Diagnosis: We inspect display and fingerprint sensor responsiveness
- Disassembly: Using professional tools in a dust-free zone
- Installation: OEM screen replacement with fingerprint alignment
- Testing: Sensor calibration, display brightness, touch accuracy
- Final QC: Ensure everything works before sealing the device
Same day service is available for most models. And if we don’t have the part in stock, we can order it for next-day installation.
💰 Cost of Replacing a Fingerprint Display Screen
Prices vary by model and screen type. Here’s a general estimate:
| Phone Model | Estimated Cost (AUD) |
|---|---|
| Samsung Galaxy S22 Ultra | $380 – $500 |
| Huawei Mate 40 Pro | $400 – $550 |
| OnePlus 9 Pro | $320 – $450 |
| Xiaomi Mi 12 | $280 – $400 |
| Google Pixel 7 Pro | $350 – $480 |
Always choose genuine replacements to avoid display issues and fingerprint failure.
❓ FAQs About Fingerprint Display Screen Replacement
Q1: Will my fingerprint sensor still work after screen replacement?
Yes, as long as the screen is OEM quality and installed properly.
Q2: Can I replace only the glass without affecting the fingerprint sensor?
Not usually. Most under-display fingerprint sensors are fused to the screen and require full display replacement.
Q3: How long does the replacement take?
Usually 1–3 hours depending on the device and part availability.
Q4: Do you use genuine parts at Sydney CBD Repair Centre?
Absolutely. We use manufacturer-authorised displays for accurate fingerprint functionality.
Q5: Can third-party screens support fingerprint sensors?
Some do, but performance and reliability are often significantly reduced.
Q6: Will my water resistance be preserved?
If your phone originally had water resistance, our process restores it with OEM-grade adhesives—though we always recommend avoiding water after any repair.
✅ Conclusion: Ensure Accuracy with Expert Help
Replacing a fingerprint display screen is not a basic DIY task—it’s a job for professionals who understand the intricate connection between screen performance and biometric functionality.
For genuine repairs, expert technicians, and same-day service, Sydney CBD Repair Centre is the trusted name in Sydney. With over 2000 five-star reviews, we guarantee quality, transparency, and peace of mind.
📞 Call us today at +61280114119 or visit our store for fast, reliable screen replacements.
