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With the development of mobile phone repair business and the market of phone fix tools are getting bigger and bigger, this industry is getting more competitive compared with before. It is difficult to get high profits and success in the mobile phone repair business, and it is not very smooth. How do you try to make your cell phone repair business keeps in a rising profits? Do you try to provide sincere service to your customers to surpass your competitors? In order to get better business in the competitive cell phone repair industry, The VIP Pro Shop Team provides some quick tips in this article, hope it will help someone who wants to build a mobile phone repair business. 1. Choose the right place In any city, you have to learn to choose the best place to take over and succeed in your mobile phone repair business. After a lot of research and investigation of the selection of the site. It is wise to choose a center close to the house and office, and the customer can reac...

The iPhone 7 device we got from customer is not turning on. In this piece, we’ll attempt to discuss the various reasons why this could be occurring to your iOS device(s), and some potential workarounds to get you back into the device if it won’t power back on. Disassemble the iPhone 7 and connect DC power supply to have a test, the restart current stuck at 50mA, and the device can not be online.  As we have repair experience on iPhone 6 generation, 50mA current is often related with CPU, U2 and display power preoblems.  Considering the online failure, we replace U2 chip first, the result is the same.  Disassemble the CPU shied cover and observe the iPhone 7 CPU chip under Stereo Microscope, we found the CPU attached well without any track of cracks. 50mA is unable to measure the voltage, so we have to first measure the resistance on the circuit of restart conditions. After the iPhone 7 CPU and NAND are measured, continue to measure clock, reset and ...

Many users have reflected this situation.There is an iPhone 6S Plus need to be repaired, the fault reflected by iPhone user is that there is no serial number when flash iPhone with iTunes, and the iTunes reports unknown error 14, 4013 and so on. According to the description, we suspect that it's an iPhone Nand flash problem. Connect iPhone to computer with lightning cable, use iTunes to flash iPhone, the iTunes reports that the iPhone "iPhone" could not be restored. An unknown error occurred (14).  Disassemble the iPhone, take out the iPhone motherboard, and then carefully remove the iPhone Nand flash. Check iPhone bitmap on WUXINJI Dongle , and then measure the diode data with multimeter, we found that the resistance value of iPhone Nand flash solder pad M6 Pin is infinitely large.  This pin passes through the R1501 resistor and pulls down, there is no resistance value when measured it with Fluke 15B+ Digital Multimeter , now we're judging tha...

This post is about iPhone microphone can't work. Your primary objective of buying a phone will die down, when you find your iPhone microphone doesn't work. There are a lot of important phone activities will be disturbed, no matter what FaceTime chat, voice chat, or recording videos, there will be no sound. It is very annoying issue, now I will tell you how to get rid of. The Solutions of iPhone Microphone Not Working • Test the microphone:  – You need to make sure the problem, try recording your voice through the sound recorder and verify if the working condition is fine or not. If needed, check the volume level of your iPhone and keep adjusting it. • Using Voice Memos:  – Open Voice Memos app that you can find on Home screen. – Make sure your fingers aren't covering the microphone. – Tap the record icon and start speaking. – Now, playback the recording voice. Make sure you can hear your own recording voice clearly. • Cleanin...

The camera does not work, this is really a troublesome issue, if you want to get rid of this failure as soon as possible, reading this article, you will know the best way to solve iPhone 6 Camera Not Working. When you turn on camera on iPhone 6 to take photos, you found the iPhone rear camera not working, it can't take pictures.  The J2321 is the interface of rear camera. After checking the iPhone 6 schematic diagram on WUXINJI Dongle, we know that there are 4 sets of power supply circuit; they go through inductance L2329, L2330, L2318, FL2343 to the rear camera interface J2321, where the PP2V85_RCAM_AVDD_CONN is 2.8V power supply! It is provided by the small glass ID-- U2301, when turn on the iPhone camera, the CAM_EXT_LDO_EN signal that sent from the iPhone CPU controls 2.8V voltage that output by U2301, and then after the inductor FL2343, send to the interface J2321.  No matter U2301 fell into water or ground, it is easy to damage, and then causes no 2.8V volt...

When turn on the IPad Air2, we notice the screen is blurred, it suddenly reboot and fails to enter into system. how to quickly fix these problems, today VIP Pro Shop Team will share some practical solution. the screen is blurred, it suddenly reboot and fails to enter into system. As shown in picture 16-12-1. picture 16-12-1 Connect the iPad 2 on computer and reflash by iTunes, it reports error 4013, we judge the problem comes from flash memory. Use corresponding iPad opening toolkit to disssaemble the iPad Air2 and take off the motherboard, then put the motherboard on iPad PCB test fixture for the next repair operation. It is found the iPad NAND chip was repaired before, so we remove the Nand chip and reflash again, the error code is reported again. So we are going to directly repair flash memory. After the flash memory is installed, it's normal when reflashing again, invalid SN is reported. If the invalid SN is reported, it basically means flash memory ...

With the development of electronic technology, smart phones are also growing faster and faster. We all know that iPhones are constantly updated with the latest models and versions, but the old aging iPhone 6 is still in use, and many people complain about iPhone 6 Charging Failure Issue, today we focus on telling everyone how to quickly solve this problem. We are going to repair a iPhone 6 device, the fault described is that there is a charging icon on screen, but no power enter into cell phone, and it keeps rebooting. After receiving it, we found that the motherboard charging chips, battery and accessories were changed. 1. Use a Fluke digital multimeter to measure the voltage of (C1408, C1700) USB were given to U1401 charge tube and U1700 (U2), the both 5V are normal 2. Respectively remove the U2 and charge tube, measure the bottom voltage to see whether the iPhone 6 motherboard has broken cables, the result shows that the two chips are all normal.  ...

Many people reflect such a situation, iPhone 7 Plus charging problem is always not get a good solution, such as the iPhone 7 P won't charge, can't connect to PC, the iPhone 7P can be recharged after turn off while it can't be charged after turn on, it leaks when iPhone 7P is on standby, less iPhone battery percentage when it in charging, stuck on white Apple logo, etc. All of these charging issues, today, VIP Pro Shop Team will share some practical solutions for free. What is the best way to solve iPhone 7 Plus charging? This is a topic that everyone is concerned about. Many people are troubled by this failure. Don't worry, everything will be okay. In this article, you will learn how to solve the Phone 7 Plus Charging problem and make your phone better run. If the iPhone 7 Plus has charging issues, such as the iPhone 7P won't charge, can't connect to PC, the iPhone 7P can be recharged after turn off while it can't be charged after turn on, it...

If you are a professional phone repairman, then you definitely need some good mobile phone repair equipment, for example, Trinocular Stereo Zoom Microscope, JC pro 1000s , pro3000s, etc. NAND test equipment, and some mobile phone repair kits, today we focus on What is the best and worth buying Trinocular Stereo Zoom Microscope, continue reading this article to learn more! 3X-90X Trinocular Stereo Zoom Microscope with 14MP HDMI Camera, it is professional microscope for repairing iPhone logic board or other cell phone motherboard. With the help of this microscope, you can make it easier to observe, weld, sculpt the cell phone. Now it has two versions, one is double arm boom stand, and the other one is extension-type arm boom stand. 1. 3.5X-90X Trinocular Stereo Zoom Microscope with Double Arm Boom Stand, you still can match 14MP HDMI camera，2.0X  and 0.5X Objective Len and 144pcs LED Light. 2. 3.5X-90X Trinocular Stereo Zoom Microscope with extension-type Arm Boom S...

How to Fix Apple iPhone 6s Speaker No Sound Problem. When you are watching the videos, the iPhone no sound suddenly. You're unable to hear the sound or caller through the receiver or speaker, a few troubleshooting steps can solve iPhone 6s sound problems safely. Plenty of people have enjoyed their iPhone 6s, but, sadly, many problems have arisen over the years. If you've run into any iPhone 6s speaker problems, this article will help you. Step 1. Cleaning the iPhone's headphone jack. Any garbage and dust will affect the phone's receiver. You can use a anti static cleaning brush and carefully clear these parts from any debris or dirt.  Step 2. Stop the bluetooth. Maybe the sound output is not on the phone's speaker but to the Bluetooth device it's connected to. To stop the Bluetooth, go to Settings > General > Bluetooth. Step 3. Restart your iPhone. Restarting your iPhone will help eliminate minor glitches to your iPhone system. Just press ...

As we know, the Apple iPhone is the one of the most sought-after and premium smartphone series out there. However, there always has some problems like all electronic devices. Before you use the iPhone repair tools to replace it, you can resolve by some simple software method. Maybe you came across this situation that you efforted to rotate the iPhone to any direction when watched videos or photos, but the iPhone refused to rotate screen, unresponsive to rotate or it either stays in portrait / horizontal mode. It may even make you think your iPhone is broken or you need to replace the inset parts. If you are going through such problem, don't worry, there are some solutions to help you. Why does my iPhone screen not rotate? Generally speaking, the iPhone display problem are due to hardware damage or software damage. When your iPhone has the screen rotate issue, you can do these steps.  Three common rotating screen failures： 1. Application fault: the App's damage...

Is your iPhone screen also showing no or no work at all? If you are worried about this issue, then congratulations, continue reading the following article to solve the IPhone 6 Plus Doesn't Display problem. 1. Use specific disassembly toolkit to tear down the iPhone 6 plus and remove the motherboard. 2. Measure the iPhone 6P chip solder plate with Fluke 15B+ digital multimeter, we find nothing is abnormal. 3. Install the display chip and buckle the screen to measure, the booting current jump is somewhat abnormal. 4. We can see the backlight behind the screen is bright, the measurement of +5.7V power supply is only about 2.2V, -5.7V has no voltage. As show in picture 16-6-1 and picture 16-6-2. 16-6-1 16-6-2 5. We estimate the display chip internal boost exists problem, and the WUXINJI dongle circuit diagram shows that the capacitor C1554 energy storage booster capacitor is short circuited. 6, Remove the damaged capacitor by QUICK 86...

When selecting tools and equipment for repairing mobile cell phones, it is important to select the best tools. We Know, Electronic products have popularized people lives and become necessities. More and more people can not without mobile phones, tablets, computers. Without communication electronic products, life is filled with despair. So, everyone has the phone as the necessary. When your phone has issue, what can you do? If you want to repair it, which tools do you need? Next, The VIP Pro Shop Team will recommend some of the most useful mobile phone repair tools. Maybe few people know that what are the best tools to get for repairing iPhones, iPads and other Apple products? However, in order to repair Apple product or every electronic products, so you' ll need a unique toolkit, which includes every type screwdrivers and pry tools etc. Now I will introduce some tool kits for you. Using the exact size and type required are important.  High-Quality Screwdrivers list： ...

The iPhone 6S volume up button is not available. This failure is common. Do you know how to fix this problem quickly? If you don't have a better solution, you can follow the following article and step by step to fix the issue that your iPhone 6S Volume Up button is not available. Check the following article to get your iPhone to work again. We received an iPhone 6S, the fault described is that the iPhone 6S volume up button unavailable. We need to repair it. Put iPhone 6S on the WL Aluminum Alloy Pad , and then use phone opening tools to disassemble the iPhone, take out the iPhone motherboard. Measure the resistance of J4700_3# with Fluke 15B+ Digital Multimeter , it is normal. Put iPhone motherboard under the 3.5X-90X Stereo Zoom Microscope to check, we found the iPhone power IC was replaced by other phone repair man. Measure its voltage, it only has 0.5V, and the voltage of BUTTON_VOL_UP_CONN_L volume up button signal is pulled down.  Picture 16-11-1 Based ...