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Recently, we received a representative repair case shared by a repair master. iPhone 13 Pro has a white iPhone Screen phenomenon. Customers reported that the cause of the failure may be that the iPhone has been hit. This fault not only affects the normal use of the phone, but may also involve a variety of complex hardware or software problems. Phonefix will disassemble this case in detail for everyone, and analyze step by step how to efficiently repair this fault. It is of great reference value for professional repair personnel to accumulate experience or ordinary users to understand the mobile phone repair process.
After the customer has tried to restart the iPhone multiple times to no avail, the persistent white screen issue strongly suggests that the problem does not stem from the system software. Instead, it is most likely an iPhone hardware failure. A professional iPhone repair technician first performs a meticulous visual inspection of the iPhone. He carefully examines the screen for any visible signs of physical damage, such as cracks, dents, or discoloration. They use specialized tools to carefully probe the edges of the screen to check for any loose connections.
Next, he turns his attention to the motherboard. He carefully removes the iPhone Back Cover, taking precautions not to damage any other components. He uses a magnifying glass and a High-precision Multimeter to check the motherboard circuitry for any signs of shorts, burnt components, or loose solder joints. They also check the connectors and flex cables that connect different parts of the device to the motherboard, making sure they are properly seated and not worn.
If the iPhone screen is indeed damaged, the technician carefully removes the old screen and replaces it with a new, high-quality screen, making sure all connections are properly aligned and secured. If the problem is traced back to the iPhone Motherboard, they identify the faulty component on the motherboard and repair or replace it depending on the severity of the damage. Now let’s see how a professional technician can finally fix this iPhone hardware issue.
1. Finding the Contact Pads
After disassembling the iPhone, the technician focuss on screen. The repairman picks up a Stereo Microscope and takes a closer look. After careful inspection, he points out two crucial contact pads. As clearly shown in the attached image, the left contact pad is marked 8 and the right contact pad is marked 6. (See the image below) These markings are industry standard identifiers and are critical to this repair procedure.
2. Preparing the Contact Pads and Flying Wires
After identifying the contact pads, the repairman picks up a small Scraper Blade. He carefully scrapes the surface of the 8 left and 6 right contact pads. The scraping action is necessary to remove any oxide layers or contaminants that might prevent a proper electrical connection. However, this is a delicate operation, too much pressure could damage the underlying circuitry.
After cleaning the pads, the repairman moves on to the flying wire phase. He selects thin, insulated wires. Using a Soldering Iron adjusted to the appropriate temperature, he expertly solders one end of each wire to the corresponding contact pad. The wires are then carefully routed to their designated locations on the motherboard. This requires precision to ensure there are no loose connections and no risk of shorting.
3. Testing and Completing the Repair
After the wire-flying is complete, the repairman meticulously reassembles the iPhone. He double-checks that all components are in their proper positions and that the screws are tightened just right. Finally, it's time for the power-on test. The repairman connects the iPhone to a Universal Screen. As the device boots up, he watches intently. A sigh of relief follows as the display comes to life, showing a normal, clear image. With a final check of other functions like audio, touch-sensitivity, and connectivity, the repairman can confirm that this repair is successfully complete.
We want to like this case analysis of the repairman, which has helped customers solve the problem that has troubled them for a long time. If you have some repair cases, you are welcome to submit them to Phonefix. We will thank you for your support. If you are a repair enthusiast, please pay attention to our official website. We will continue to provide you with repair cases.
China Phonefix is your optimal choice. We not only offer a comprehensive range of professional repair tools tailored specifically for the iPhone series, but also provide a wealth of Real-world Professional Case for your reference. Our aim is to offer you invaluable insights and advice that can significantly enhance your repair career. Whether you're a seasoned technician or just starting out in the field of iPhone repairs, our resources are designed to help you tackle any repair challenges with confidence and precision.
