As a distributor of iPhone screen replacements, performing thorough quality inspections upon receiving aftermarket screens from your factory is critical to ensuring customer satisfaction, minimizing after-sales issues, and enhancing your brand reputation. With countless brands and varying quality in the market, a standardized and scientific inspection process is essential.
This article provides a comprehensive guide on key inspection items before and after installation, helping you ensure your products meet customer expectations and expand your business.
Basic Inspection Process Upon Receiving Goods
1. Appearance Inspection
Packaging Integrity
Confirm the packaging is intact without damage or deformation, and the labels (model, production date, batch number) are clear and accurate.
Screen Glass Surface
Check for any scratches, bubbles, cracks, or dirt on the glass.
Flex Cable and Connectors
Ensure the flex cables are undamaged without breaks, and connector pins are straight, clean, and free from oxidation.
2. Specification Confirmation
Model Matching
The screen model must exactly match the iPhone model you ordered to avoid compatibility issues.
Complete Accessories
Confirm inclusion of necessary accessories such as adhesive, dust filters, earpiece mesh, and front camera lens.
Detailed Functional Testing
It is recommended to use test devices or professional testing equipment to thoroughly verify the following:
1. Display Quality Inspection
- Gaps and Unevenness
After installation, check if there are any gaps or uneven edges on the screen which could indicate poor fitting. - Visual Distortions
Illuminate the screen and observe for dark corners, lines, or other visual abnormalities that could affect user experience. - Foreign Particles
Confirm there are no visible dust, bubbles, or debris under the glass. - Dead Spot Testing
Use swipe gestures to identify any unresponsive touch areas on the screen to ensure full touch functionality. - Maximum Brightness and Color Calibration
The screen should reach the original maximum brightness levels and display colors naturally without excessive yellowing or blueness.
2. Touchscreen Functionality
- Smooth and Responsive Touch
Confirm that the touchscreen responds quickly and smoothly across the entire display, without delays or dead zones. Multi-touch should work properly.
3. Sensor Functionality
- True Tone Display
Verify True Tone is functioning correctly, automatically adjusting the screen color temperature based on ambient light. - Ambient Light Sensor
Confirm the ambient light sensor adjusts the screen brightness as needed. - Proximity and Other Sensors
Ensure proximity sensor works properly to turn off the display during calls.
4. Fingerprint Recognition (If Applicable)
Verify fingerprint sensor functionality where supported. Note that some aftermarket screens may not support or include the Home button and thus lack fingerprint functionality.
Durability and Batch Sampling
- Durability Testing (Optional)
Gently tap around the screen edges to check for looseness or cracking. - Random Batch Sampling
Perform random inspections on samples from different batches to ensure consistent overall quality and avoid batch-specific issues.
Inspection Records and Feedback
- Maintain detailed inspection records for each batch, documenting all test results and any defects found.
- Promptly report any quality issues to your factory partner to facilitate corrective actions and continuous improvement.
Inspection Tips
- Use professional equipment or third-party testing labs to enhance inspection accuracy and credibility.
- Choose suppliers with strong reputations to ensure stable product quality over time.
- Clearly inform your customers whether the screen is an original or third-party replacement to avoid misunderstandings.
Why Choose NCC?
NCC is recognized globally for its relentless pursuit of quality and innovation. Every screen display assembly is subjected to comprehensive batch testing before shipment, ensuring display performance, touch sensitivity, sensor accuracy, and durability meet or exceed industry standards. This commitment has made NCC the leading screen supplier in the UK market, with over 25 million units sold worldwide and coverage across more than 20,000 retail locations.
Choosing NCC means partnering with a trustworthy supplier who safeguards your business success.
‣ Free Download: Quality Inspection Google Sheets Template
To help you carry out efficient and standardized quality inspections, we provide a free Google Sheets template covering all critical inspection points and instructions.
Click the link below to download or use it online and streamline your inspection workflow:
Download/Access the Quality Inspection Google Sheets Template