share some phone repair tools and iphone icloud unlock tool

Customer says an iPhone6 needs to be repaired. no service on iPhone 6. It's been repaired, but it's not fixed. Vippro Shop Team Share some maintenance skills I hope I can help you. After we received the iPhone 6, we started checking the iPhone. We can't find the operator in manual condition. As shown in picture 8-3-1. Disassemble the iPhone 6 by phone opening tool , take out the motherboard, we can found that the colleague has been repaired RF parts, now we need to fix it step by step. Let's start with the easiest. Soldering jump wire on U1、V1 pin, still no service. Because the colleague repaired too many chips, as long as the chip on the RFFE bus has problems, it will affect this. Remove all chips except 2G power amplifier on RFFE bus, the iPhone still no service. Then we replace the antenna switch and RF IC, the problem still the same. It seems that colleagues have amplified the problem. Now we use multimeter to measure the power supply on RF IC U_WTR_RF

Mobile phone repair peer sent to a iPhone6 mobile phone, said that is the customer upgrade, the appearance of brush machine Error 56, this situation how we should solve it, Vippro shop team tell you how to do? Generally, flash iPhone and then display error 56 is caused by a rear camera  inductor, a capacitor short-circuit or camera power supply. Furthermore, it is caused by dropping pins, virtual welding or disconnecting on NFC chip U5301/U5302. As shown in picture 8-1-1. After remove the chip, we found it clearly dropped pins. As shown in picture 8-1-2. Combining bitmap  observations, we found that most of them are empty points; There is a place need to solder. Check the motherboard, no disconnection found on it. So, we just need use rework station to solder F7 pin. As shown in picture 8-1-3. After finish soldering jump wire with rework station, flash it to "hello" interface. We thought the repairs were over. However, when we get the ID to enter the IOS, and

When you update the iphone 5s device, your device stays on the Apple logo and does not work properly. So how to get rid of this bad situation quickly? In this article, we give you some tips that you can easily follow and try. vipprogrammer-help you fix iphone5s boot card in Apple logo problem. For example Today we'll repair an iPhone5S, the customer reflects the failure is the nut was wrong installed when replacing the screen, may be the motherboard  layer was broken down, which causes the device to reboot with white apple. After testing, the symptom is exactly same as the customer description. As shown in picture 7-9-1. How to fix this fault step by step? 1. First, power off the device and remove the motherboard, we can see the screw  column is damaged when observing with the microscope , there are traces of being pierced. As shown in picture 7-9-2 and 7-9-3. 2. Continue to scrape the motherboard layer, there are four wires were interrupted. As shown in picture 7-

We got a damaged iPhone 6, the customer described the failure is cannot turn on. Remove the motherboard and connect it to DC power supply  , we found that the process of current jump is normal, which shows that iPhone 6 is not unable to boot, but not display. The initial judgment of the iPhone 6 motherboard without maintenance, water damaged, fall pieces and so on, carefully check the display adapter, there is no obvious fault. Now we measure the data of display adapter (reference schematic diagram and phone repair system), the resistance data of display adapter all is normal. As shown in picture 7-1-1 and 7-1-2. Then use multimeter   to measure the power supply, it shows +5.7V,-5.7V, the backlight boost circuit is only about 4V. However, on the normal case, the backlight boost circuit should have a voltage of about 11-17V. As shown in picture 7-1-3. Because the backlight boost circuit is not normal, so we need to check the circuit and find the problem. As shown in pictur

Share a iphone5s maintenance experience and hope to help more people. No matter what electronic products are repaired, the first step is to understand the structure of the machine, and then differentiate the faults. For example, Apple iPhone is divided into two main parts: 1. AR part is the boot part. 2. BB part is baseband part, which belongs to the phone call part. Now the fault of this iPhone 5s is it can boot, just sometimes it can call out, but can't receive calls. We can determine the fault is in the baseband  section and then start measuring. 1. Enter *#06#, we can see IMEI number, which means the baseband has no problems. 2. The problem of reception and launch is generally RF power supply. 3. We can detect the SIM card  , which means receive part is normal, now we need to test the launch part. 4. Open the circuit diagram , and then find the RF power supply IC U11_RF. As shown in picture 7-7-1 and 7-7-2. Find this chip on iPhone 5s motherboard, as shown

The popularity of mobile phones to promote the development of mobile phone repair industry, when our mobile phone problems, we had better ask professionals to repair our mobile phones. Repair an iPhone 6 plus, the fault is no display when booting, and is shows short circuit connection. We can see the device was dropped as the screen is broken. Disassemble the device and the power short-circuit current is more than 700 mA, observe the motherboard  under the microscope . As shown in picture 7-6-1 and 7-6-2. Backlight IC  is placed directly on the top, we also find that the screw column is broken, there must be a broken line. After the measurement of power supply, it shows PP1.8V, PP1.8_SDRAM are short circuit. 1.8V power supply connected to the original components as shown in picture 7-6-3. Decisively take off the black touch welding on the 5 large chips and some capacitors, 1.8V short-circuit is excluded. Check the PP1.8_SDRAM power supply, and the original components are s

The customer says his iPhone 6 can't be rebooted on the second day after charging at night, according to diagnosis and test: it’s short circuited when we offer power supply  (power supply grounding). Power supply short circuit is mostly from two groups of power supply problems: battery  power supply(PP_BATT_VCC), charging tube output power supply (PP_VCC_MAIN). If there is one of the power supply grounding between them, the short circuit fault as the iPhone 6 will be caused. First of all, we need to judge which group power supply causes the problem, measuring the battery power supply (PP_BATT_VCC) to check whether the battery interface is connected with positive and negative port, if not, it means the first group of power supply has no problem, on the contrary, it would be the first group power supply problem. The two groups power supply circuit picture are shown in picture 4-10-1. After measuring the iPhone 6 device, we get to know the fault is the charging pipe output po

Water is the source of life, but not for iPhone. There are many cases of iPhone damage or even death after get liquid, because the liquid can damage the motherboard of iPhone; it's a nightmare for the owner of iPhone. When the iPhone accidently drop into water or liquid, what do we do to reduce water damage to the iPhone? The wrong operation may cause your iPhone to receive more serious damage. Here are some suggestion form Vip Pro Shop Team, we hope these suggestions will help you. 1. Take out the iPhone as soon as you can. There are 1000 possible types of iPhone falling into the water. When things happen, what you have to do is not complain or upset, but immediately take out your iPhone from water in order to avoid the more damaged. 2. Don't boot the iPhone. Most of people have a habit which is turn on the iPhone after it dropped in water to check if it is ok. If the water has reached inside the device, then it might cause more damage to your iPhone than good. The be