The Most Common Mistakes in Phone Repairs and How to Avoid Them

When repairing smartphones and tablets, mistakes can have significant consequences for both the customer and yourself. By recognizing the most common problems, you can prevent many of these errors. In this blog, you’ll learn which pitfalls occur most frequently and get practical tips on how to address them correctly, so your repairs become faster, safer, and more customer-friendly.

1. Rushing the Diagnosis

A common mistake in smartphone and tablet repairs is that technicians open the device too quickly without first performing a proper diagnosis. This can lead to unnecessary disassembly, wasted time, and dissatisfied customers. A thorough analysis helps prevent errors and improves the quality of your repairs.

According to an analysis by OpenRepair, of approximately 1,900 smartphone repairs, only about 50% were completed successfully, often because the process started too quickly without a proper diagnosis.

2. ESD Protection and Disconnecting the Battery

Working on smartphones and tablets without ESD protection or with the battery still connected can cause serious damage to sensitive chips or the motherboard, leading to malfunctions, short circuits, and more expensive repairs. Always wear an ESD wrist strap, work on a grounded surface, store sensitive components in anti-static trays, and always disconnect the battery first. Additionally, carefully check all connectors and fastenings before reassembling the device. Following these precautions protects the internal components, reduces the risk of errors, and increases the reliability and safety of your repairs.

According to data from Burklin, approximately 25% of all electronic components returned to manufacturers are damaged due to electrostatic discharge (ESD).

3. Swapping or Incorrectly Installing Components

In complex smartphone and tablet repairs, using the wrong screws, misplacing cables, or swapping components can cause device malfunctions or additional damage. To prevent this, stay organized by using labeled trays or magnetic mats, and take photos during disassembly to ensure everything is reassembled correctly. Finally, carefully check all connectors and screws before closing the device.

4. Cluttered or Unsanitary Workspace

A cluttered workspace in smartphone and tablet repairs often leads to wasted time, lost components, and potential damage to the device. To prevent this, clean up after each repair, use trays or containers for small parts, and clean your work surface daily. Additionally, check your tools regularly to maintain an efficient and safe working environment.

5. Skipping Software Issues

Many problems with smartphones and tablets are software-related, and drawing the wrong conclusions can lead to unnecessary hardware replacements. Therefore, first check the firmware, updates, and installed apps, ask the customer about the device’s behavior, and clearly explain the possible solutions. This way, you work more efficiently, save costs, and increase customer satisfaction.

Conclusion

Preventing common mistakes in smartphone and tablet repairs can save a lot of hassle, extra costs, and customer disappointment. By working in a structured way, testing thoroughly, using ESD protection, and taking both hardware and software issues seriously, you reduce the risk of damage and recurring problems. This allows you to work more efficiently, keep your customers satisfied, and build a strong reputation as a reliable mobile repair technician.

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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.