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Showing posts from September, 2022

Fix iPhone X high current problem

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   This article will cover one of the problems that many iPhone users frequently encounter. As described by one iPhone X user, it cannot be turned on due to high current. Next, we will share how to fix iPhone X won't turn on due to high current.    We first need to conduct a visual inspection of the motherboard, and it can be observed that the motherboard is not deformed or damaged by water. The motherboard can then be connected to the DC power supply and we can see that there is no current leakage. Judging from this, the three main power rails PP_BATT_VCC, PP_VDD_MAIN and PP_VDD_BOOST are in normal state.    Next go ahead and start the motherboard with tweezers. We can see that the starting current is greater than normal. We can now determine that the fault may be related to the 17 supply rails of the PMU output.    Now we need to detach the motherboard and confirm if the fault is related to the upper or lower layer. First put the motherboard on...

How to choose a soldering station?

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 For today's home electronics hobbyist, having a soldering station is almost a must, the soldering station will improve your speed and accuracy. Today, we at phonefix compared two soldering stations AIFEN A902 and AIFEN A9. Help you better choose a suitable soldering station. AIFEN A902 Soldering Station This is one with C115 C210 C245 soldering handle and soldering iron tip for mobile phone PCB tablet BGA IC repair. 350W Affin A902 dual soldering station, with automatic sleep function, compatible with JBC C115 C210 C245 soldering iron tips, very suitable for daily mobile phone electronic components soldering repair. AIFEN A9 Soldering Station This is a soldering iron tip with T210 T245 T115 soldering handle C210 C245 C115 I/IS/K for mobile phone electronics BGA PCB component soldering repair. Dawning AIFEN A9 lead-free soldering station is compatible with JBC soldering iron tips for mobile phone BGA PCB repair. How are they different? 1. Workstation AIFENA902 has a double station...

4 Popular and Common Types of Microscopes

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  Microscopy is a technique for studying the structure of objects that are too small to be seen with the naked eye. There are many different types of microscopes, and each solves unique problems. Today, we will share four excellent microscopes. 1. Stereo microscope Stereo microscope, also known as “solid microscope” or “dissecting mirror”, can produce upright three-dimensional space images when observing objects. Strong stereoscopic effect, clear and wide imaging, and long working distance, the scope of application is very wide. The operation is simple, intuitive, and the verification efficiency is high. It is suitable for the verification of welding defects (printing dislocation, sagging, etc.) in the inspection of printed circuit components in the electronic industry production line, verification of single-board PC, verification of vacuum fluorescent display screen VFD, etc. , with measurement software can measure various data. 2. Compound Microscope Compound microscopes (also kn...

5 Common Phone Repair Mistakes

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 Repairing a phone can be tricky at times, and when these situations arise, the experience of a qualified technician will always come in handy. But no matter how professional one is, anyone can make mistakes. So, we've listed some common and easily avoidable mistakes mobile phone repair technicians make. 1. Do not backup data Before making any repairs to your device, make sure to back up all sensitive and important data to the cloud or to a physical storage device. This will guarantee that if anything happens, no matter how far-fetched it is, you'll have backups, so you don't risk losing them. Therefore, It is important that a data transmission cable  is required to back up the data before repairs. 2. Don't ask customers about the phone's questions and history When a customer submits a phone for repair, many technicians don't ask the customer what or why the phone is malfunctioning. It will take a lot of time to find the fault. Conversely, if a customer is asked...

5 Common Mobile Phone Problems and Solutions

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 Nowadays, people carry their mobile phones wherever they go, and they are always in their hands at any time and anywhere. But phones can get sick just like people. When something goes wrong with your phone, don't panic. Here  phonefix organize five common mobile phone problems and solutions. These glitches can be fixed at home. 1. The phone runs slowly It's something everyone experiences once - slow phone performance. This is the most common cell phone problem and can be related to older phones. However, newer devices can also have this same problem. Your phone tends to run slowly when your random access memory (RAM) downloads full of apps and files you don't use or need. Solution Clean phone and close/delete apps, files clear cache data. If the slowness persists, restore your phone to factory data. Of course, it is recommended that you back up all important file data first. 2. Bad battery life Another common problem that happens to everyone - bad battery life. Even thou...

Common welding station tools and cleaning tools

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  Welding is a very complex process used to join two materials without fusing them. In order to perform such a complex process effectively, you must equip yourself with the right set of equipment. 1.  JBC Soldering Iron Tip A soldering iron is the most basic soldering device and is shaped like a pen. First, heat the tip of the iron by powering the device. After heating, put it on the solder and melt it. Soldering station soldering iron head has straight head, angle head and knife head soldering iron head. 2. Flux It is best to use flux when soldering, which is conducive to good soldering without causing short circuits. 3. Multimeter A multimeter is a necessary instrument for manufacturing and repairing various communication products and other electromechanical products. It is one of the most commonly used maintenance instruments in mobile phone repair. It mainly tests the voltage of key points in each part, the continuity of the line, and the quality of the components. 4. Micr...

7 Essential Tools for Mobile Phone Repair

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Mobile phones are the most convenient and comfortable means of long-distance communication. One of the most incredible technological inventions, the mobile phone allows you to keep in touch with your loved ones at any time. However, sometimes users may fail due to problems with certain parts of the phone, and phone repairs can be essential. So,phonefix will discuss some of the most common must-have tools for cell phone repair. 1, Tweezers Tweezers are flat-shaped devices consisting of two jaws used to pick up small objects like jumpers, integrated circuits, etc. when soldering/desoldering. It's a must-have in your phone repair kit. Mainly using tweezers when repairing the CPU of the phone. 2, The precision screwdriver set Since disassembly is the first step in starting repairs, a special screwdriver must be used. To repair your iPhone, you first need to unscrew the pentagonal screws that require a screwdriver. However, a screwdriver is not enough. You may need a whole set of screw...

iPhone14 vs iPhone14 Pro:Which One You Want to Choose?

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  Apple announced the iPhone 14 series at an event in Cupertino in early September. There are four devices in this series, including iPhone14 ,  iPhone14 Puls, iPhone14 Pro and  iPhone14 Pro max . There is no iPhone 14 mini this year. Phonefix compared the iPhone 14 with the iPhone 14 Pro based on the published specifications so that you can choose the right model. iPhone14 vs iPhone14 Pro — Dimensions While both devices are billed as 6.1-inch smartphones, they are not the same size. At 5.81 inches, the iPhone 14 Pro is a hair taller than the 5.78-inch iPhone 14. The roles in width are reversed, with the iPhone 14 being larger at 2.82 to 2.81 inches. These are just minor differences that users won’t notice. Both units are 0.31 inches thick. iPhone 14 and iPhone 14 Pro — Displays The first major difference between the models is the screen. Both feature a 6.1-inch Super Retina XDR OLED display with HDR support, equal 2 million:1 contrast ratio, wide color gamut (P3) support...