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20-01-2026

LCD Screen Repair: 5 Tips for a Successful Repair

LCD screens are surprisingly durable, but repairing them requires true precision. One wrong move can damage the screen, lead to additional repairs, and result in unhappy customers. In this blog, we discuss the most common mistakes in LCD screen repairs and how to avoid them.

1. Always Use the Right Tools

Much damage is caused by using the wrong tools. Hard spudgers or metal tools can:

Damage the touch layer
Crack the glass
Loosen connectors

Tips for repair technicians:

✔ Use spudgers that aren’t too hard

✔ Make sure screwdrivers are the correct size

✔ Avoid using metal tools on flex cables

2. Watch the Backlight and Adhesive

LCD screens have a backlight that is sensitive to pressure and heat. Mistakes can cause:

Dark spots or discoloration
Flickering pixels
Poor touch response

Tips for repair technicians:

✔ Apply adhesive evenly

✔ Never press too hard in the center of the screen

✔ Make sure the backlight stays in place during assembly

3. Handle Flex Cables Safely

Improperly disconnecting or installing flex cables is one of the most common mistakes.

Consequences:

Loose connectors
Intermittent display issues
Touch problems

Tips for repair technicians:

✔ Check the correct folding direction of the flex cable

✔ Never pull on the cable

✔ Use plastic tools to protect the cable

4. Check the Frame and Chassis

A screen may be damaged from a fall, but the frame can also be warped. A bent frame can cause:

Breakage during installation
Pressure points on the screen
Adhesive that doesn’t bond properly

Tips for repair technicians:

✔ Repair or replace a warped frame

✔ Test the screen separately in the frame

✔ Make sure everything is flat before applying adhesive

5. Test the Screen Before Installation

Issues like dead pixels or backlight problems often only become visible after installation.

Tips for repair technicians:

Test the screen thoroughly before installation
Use white, black, and colorful test patterns
Check touch functionality across the entire screen

Conclusion

LCD screen repair requires attention to detail and the right techniques. Pay close attention to tools, the backlight, flex cables, and the frame, and always test the screen before installation. By working in a structured and careful way, you save time, avoid extra costs, and ensure satisfied customers. With the right parts and knowledge, you can work faster, safer, and more profitably.

Check out our other blog about LCD here.

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FDX LITE

To offer our customers an affordable option, we introduce FDX Lite. These screens have an HD resolution and provide the best quality within this price segment. While we conduct strict quality controls, we have no influence on the production process. FDX Lite screens come with a factory warranty, but damage to the interior of the screen is not covered by the warranty.

Features	FDX LITE
Pixel resolution	High Definition (HD)
Refresh rate	Fast response
Includes	Camera holder, earpiece mesh and proximity bracket
Temperature	Low and controlled
360° Polarized	Supported
Oil resistant coating	Supported
Anti-glare	Supported
Front Glass	Anti-dust and fingerprint oil
Inspection	Tested before shipment
Warranty	Covered

Service Pack

These parts are original and manufactured in a certified environment by the original manufacturer of the device.

Pulled

These parts are 100% authentic and undergo rigorous testing and inspection after being removed from an original pre-owned device.

Refurbished

These parts have been removed from an original pre-owned phone, but the front glass has been replaced with a glass equivalent to the original, while all other materials have remained authentic.

OEM-Equivalent

These parts are professionally assembled by a third party using equivalent components and materials to the original manufacturer.

FDX ULTRA

Soft OLED is a high-quality LTPS-OLED solution offering excellent value for money. Thanks to its flexible COP design, the display is thin, lightweight, and less prone to breakage, while delivering bright and vibrant visuals close to OEM-level quality. The touch response is fast and precise, and each batch is carefully tested for color, stability, and performance. This allows professional repair technicians to rely on consistent quality, high compatibility, and a dependable display that looks premium without the premium price tag.

FDX PRO

Hard OLED is an affordable OLED solution that combines bright, sharp image quality with strong price positioning. The rigid COF panel provides a solid construction that performs well in everyday use. Colors are vibrant, brightness is strong, and touch response remains accurate. Each batch is checked for stability, uniformity, and sensitivity, ensuring technicians can rely on consistent quality. Hard OLED is ideal for customers who want a competitive price without sacrificing reliable performance and visual clarity.

FDX ELITE

FDX Elite is our premium product, where we work closely with the manufacturer to optimize quality. We make improvements based on customer feedback and our own expertise. Due to our direct influence on the production process, we have full confidence in the quality. Therefore, we offer extensive warranty coverage on these screens: even damage inside the screen (which is normally not covered) is included. However, if damage is visible to the naked eye, whether inside or outside, the warranty becomes void. Our FDX Elite screen has an FHD+ resolution and will be the most expensive option due to its added value and extensive warranty. With this quality and service, we aim to provide a worry-free experience for our customers.

FDX PRIME

FDX Prime represents the standard in-cell quality, purchased directly from the manufacturer, just like other suppliers in the market. The choice of manufacturer depends on the quality of the production batch, and the products meet the highest in-cell quality standards in the market. FDX Prime screens have an FHD resolution and come with a regular factory warranty. This means that damage to the interior of the screen is not covered.