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iPad Display Issues with Stylus: Why Copy Pens Cause Touch Problems

iPad Display Issues with Stylus: Why Copy Pens Cause Touch Problems

Lately, we’ve been seeing more and more cases where customers report that the iPad display is “not responding properly” when using a pen. At first glance, it looks like a touch issue, but after testing quite a few of these, the pattern is pretty clear. In most cases, the display is actually fine. The difference comes down to the type of pen being used. When we test with an original Apple Pencil, everything behaves as expected. You can write normally, rest your hand on the screen, and the input stays stable. No jumps, no interruptions. But when we switch to a copy pen, things change. If you only use the tip, it often works okay. The moment you rest your hand on the screen while writing, you start seeing issues. Lines break, touch becomes inconsistent, or the screen seems unresponsive. That’s usually the moment customers think the display is defective. From a repair perspective, this is where things go wrong if you’re not careful with testing. If you only test quickly with a pen—especially without resting your hand—you might miss it. If you don’t ask what pen the customer is using, you might approve an RMA that shouldn’t be one. The easiest way to avoid this is to go back to basics when testing: First, use your fingers and check the full screen If touch works fine everywhere, that already tells you a lot Then test with an original Apple Pencil (your reference) Only after that, test with a third-party pen and simulate real usage (including resting your hand) That last part is important because that’s exactly where copy pens tend to fail. It’s not the screen struggling—it’s the pen not handling palm rejection properly. We’ve also found that asking the customer one simple question upfront saves a lot of time: “Are you using an original Apple Pencil?” In many cases, that alone points you in the right direction. If there’s still doubt, ask for a short video from the customer. You can usually see immediately whether it’s a display issue or just how the pen behaves when the hand is on the screen. Key takeaway If the display works fine with touch and behaves correctly with an original pen, then it’s not a screen problem. What looks like a defect is often just the limitation of a copy pen. Catching this early means: Fewer unnecessary returns Less back-and-forth with customers A smoother repair process overall      

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  • Are Chinese products actually poor quality? 

    Are Chinese products actually poor quality? 

    Our 4Phones team had the opportunity to visit one of the largest iPhone display factories in China. In the era of mobile technology, the demand for high quality and durable components is higher than ever. In this video, we will show you how we have responded to this demand, by sourcing Chinese partners who advocate for the implementation of advanced manufacturing techniques and rigorous control processes.WATCH THE VIDEO 

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  • EU will support the Right-to-Repair with new rules

    EU will support the Right-to-Repair with new rules

    Good news for all the  Right-to-Repair movement supporters. For us repair specialists, a lot is probably going to change, in a positive way. The European Commission adopted a proposal for uniform rules to promote the repair of goods. The motivation of the EU to do this is that it will not only benefit consumers but also contribute significantly to reducing e-waste. However, of course, the European Parliament and Council still have to make a final decision on this proposal. Both are expected to agree, and the new rules will eventually be introduced. The early disposal of easily repairable electronics results in 35 million tons of e-waste per year. By implementing the new rules, 30 million tons of resources, including energy, water, rare metals, and others will be conserved. This will reduce CO2 emissions by 261 million tons annually. All in all, this results in savings of 12 billion euros each year for EU citizens. Additionally, this measure promotes economic growth, increasing demand for repairs and therefore the turnover of European repair companies by 4.8 billion euros per year. What does the EU propose exactly? During the legal warranty period, sellers must offer repair, unless a replacement is less costly. Outside of the legal warranty period, consumers will have a new set of rights and tools that will make "repair" a simple and accessible option: The right for consumers to demand repair of technically repairable products such as phones, laptops, washing machines and televisions from producers under EU law. This ensures that consumers have someone to turn to when their products require repair and encourages producers to adopt more sustainable business models. Producers must inform consumers of the products that can be repaired by the producers themselves. An online repair platform will connect consumers with repairers and sellers of repaired goods in their area. The platform will allow searches based on location and quality standards, making it easier for consumers to find attractive offers and for repairers to become more visible. A European repair information form can be requested by consumers from any repairer, which makes repair conditions and prices more transparent, allowing for easier comparison of repair offers. A European quality standard for repair services will be developed, which will help consumers find repairers that provide quality work. The "easy repair" standard will be available to all repairers across the EU who commit to respecting minimum quality standards based on product longevity or availability.  All in all: good news for you as a repair specialist! What this means for you as a repair specialist, is that the proposed rules by the European Union to promote the repair of goods can bring increased demand for your services, more business opportunities, and greater consumer confidence in your work through transparent communication of repair conditions and prices. We at 4Phones are happy about this sustainable and circular development and are eagerly waiting for the EU to introduce these rules.

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  • HOW TO: Remove iPhone non-genuine screen warning by aftermarket screens

    HOW TO: Remove iPhone non-genuine screen warning by aftermarket screens

    "Unable to verify this iPhone has a genuine Apple display" is a notification that most technicians will recognize. If you've replaced your iPhone screen with an aftermarket one, you may have encountered a "Non-genuine screen" warning message. We explain how you easily remove this warning in a few steps. This guide is about the iPhone 11, 11 Pro, 11 Pro Max, 12, 12 Pro, 12 Pro Max, 13, and 13 Mini). In this case, we will work with RJ In-Cell LDCs. (OEM quality, can restore true tone and exchange the display IC). 1. Remove the IC from the original LCD Firstly, we have to remove the glue with a QianLi knife or similar tool (SKU: 0640467F26). The recommended temperature is 180ºC. Then we have to extract the IC with the same hand-polished QianLi tool and with flux. 2. Clean the IC (placed at a PCB/IC soldering holder) Flatten the bonding pads with a soldering iron (300 °C). Then remove the adhesive with a hot air gun (300 °C) and a hand-polished knife of QianLi. Clean the bonding PADS with PCB cleaner. Apply some low-temperature soldering paste (138 °C). Form the solder balls with a hot air gun (300 °C).   Now we have to install the original IC. Apply some flux and place the original IC. We are using 260-280 °C for soldering the IC. Then, we have to install the modified LCD and check the touch. It now works fine and has the true tone settings.

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  • DIFFERENT CABLE TYPES - 100W vs 60W: which one do I choose?

    DIFFERENT CABLE TYPES - 100W vs 60W: which one do I choose?

    With the increasing number of devices we use in our daily lives, we often come across different cables with varying specifications. One of the most important specifications is the wattage rating of a cable, with 100W and 60W being the most common options. Base the cable choice on your charging needs. In this blog, we explore the difference between 100W and 60W cables, which one to choose, and why. The wattage rating of cables Firstly, it’s important to know what the wattage rating means. The wattage rating of a cable determines how much power it can handle without causing damage or overheating. The wattage specification is essential when it comes to charging devices that require a higher power input, such as laptops, gaming consoles, or high-end smartphones. The difference between 60W and 100W cables The difference between 60W and 100W cables comes down to their charging and data transfer speeds. A 100W cable can charge devices faster than a 60W cable. The reason for this is that a 100W cable can handle more current, allowing it to charge devices faster. Additionally, a 100W cable can transfer data at a higher speed than a 60W cable. This means that transferring large files between devices will be much quicker with a 100W cable. The gauge, or thickness, of electrical cables affects their ability to carry current. Thicker cables can handle more current without overheating. A 60W cable will have a thinner gauge than a 100W cable because it is designed to carry less current. Selecting the correct gauge is important for safe and efficient operation of your devices. In conclusion: do I choose a 60W or 100W cable? The wattage rating alone does not determine the maximum current carrying capacity of a cable. The maximum current carrying capacity of a cable depends on various factors, including its gauge, length, material, and environmental conditions. Choose a 60W or 100W cable based on the power rating of the device. If you have a device with a power rating of 60 watts, you should use a cable that is rated to handle at least 60 watts or more. Similarly, if you have a device with a power rating of 100 watts, you would choose a cable that is rated to handle at least 100 watts or more.  In general, a 100W charging cable can deliver more power than a 60W charging cable, which means that it can potentially charge a device faster or support charging larger devices that require more power. See our favorite 100W charging cables here: 100 W CHARGING CABLES

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  • Your broken screens are worth money!

    Your broken screens are worth money!

    Imagine this situation: you’re repairing a screen and throw it blindly into the box you always store them in, mixing the good and the faulty ones. This is probably very recognizable for you as a repair technician, many repair specialists work this way. But what many don’t realize is that the good screens may damage because you’re putting them together with the faulty ones…  Very unfortunate, because with 4Phones' buyback program, your broken screens are worth money! Customers who participate in our Buyback program, often send all the screens they’ve gathered over time. They send all the mixed good and faulty screens, wasting a lot of time packing them, resulting in an unnecessary heavy box. And, once we receive these screens, it takes us a lot of time to test them. So, when you want to receive the maximum value of your broken screens through our buyback program, but you mix both good and faulty ones together in 1 box, you… Take the risk of damaging the good screens Receive a potentially lower refund Need more time to pack all of them Have to send an unnecessary heavy box Need to wait longer for the test results The solution: get the most out of our Buyback program!  Luckily there is a very easy solution for this all! A solution that takes maybe 1 more minute per repair… That sounds good right?! We recommend you store the screens in a different way, to save time and to make sure you send us more good screens, resulting in receiving a higher refund: During the repair process, check whether the screen is good or faulty (pay attention to black lines, damaged LCD) Put the good screen in a different box than where you put the faulty ones. It is important to separate them Whenever you have more than 30 good screens in the “good-screen”-box, you print our buyback form, fill it in and send the screens to us.  This only takes you +/- 1 minute more per repair, but eventually saves you a lot of time and makes sure you get the maximum out of our Buyback program! And... Did you know that we now have a promotion in which you can get a 100 euros bonus whenever you send more than 30 'good-tested' broken screens? Read all about this promotion here!  

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