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We received a dropped iPhone 6P,  it can be turned on when come, but we can not test its other functions because of its ineffective touch. And the same fault still exist after replaced screen, use the iPhone opening tools to open the board for measurement. The bottom of the UMT board is easy to be disconnected, so we plan to dealt with the no- touch fault at first. There are two ways to take the IC: one is to take out with tweezer; the other is to pick up from the side of IC. After removed the iPhone touch IC , reinstalled the machine, and the phone boot White Apple restart, turn on start current run at 300mA. Picture 1 We haven't repair other place else, only remove the touch IC and check the resistance of the bottom of the board. The resistance is normal after tested by digital multimeter , such problem we haven't meet before. I am a little anxiety see the fallen UMT. Since the start current is too large, take U2 down and look at the starting current, he resul...

If you use vibration on your iPhone, it may be very frustrating if the iPhone not vibrating for no apparent reason. The first thing you will think is that you need to call Apple but maybe you won’t need the professional assistance or service repair. Sometimes, the vibration problem can be fixed just by trying out some simple tricks.  The VIP Pro Shop Team will going to list a few solutions, and we hope one of them will work for you. let’s see how to fix vibration on iPhone. The iPhone 8 has no vibration, new machine model has no drawings. Try changing a vibrator first, we found there really exist a problem with the motherboard. We only replace with the iPhone vibrator IC first. Before repairing, take a picture of the position, then find a material board. Before repairing, take a picture of the position, then find a material board. Picture 1 We recommend that all new machine parts can purchase this iPhone junk motherboard directly. Many pieces of this board ca...

How to solve the iPhone 6 No Speaker Sound problem, many customers discuss this issue in the forum, they have no sound when answering the phone, this is a sad thing, how to solve this problem quickly, The vip pro shop team provides a solution Program, you can view the following case and get your phone back to work as soon as possible. Fault Description The customer said that his iPhone 6 had no speakers when answer the call and there was no sound when playing music with speaker. After received the phone, we turn on the power. Then go to Settings - Sounds - Ringtones. Select one from the list. The iPhone 6 has no speaker sound. Everything works fine when you plug in the headphones, which indicates the normal state of the iPhone audio IC . Therefore, the fault may be related to the speaker and audio power amplifier circuitry. Repair Process Disassemble the phone and measure the resistance values of 1# and 2# on the flexible cable connector of the charging port. T...

Many customers complain that their iPhone8P often has problems, and even the same problem recurs. For example, many users report the problem of iPhone 8 Plus Won't Turn on After Water Damage, which makes many mobile phone repair personnel have a headache, how to solve this problem completely, today We have invited a professional team to help us solve this problem. Follow the example shared by the VIP Pro Shop Team below to get your phone back to work! An iPhone 8P fell into the water last night，and then the iPhone 8 Plus won't turn on. The customer sent it to us in the next morning, after we received the iPhone, seems there are many water coming into the iPhone. The customer told us that the iPhone doesn't important, just want to extract the data from iPhone. Now, we are going to fix it. Take out the iPhone motherboard , clean it up and dry it. After drying please don't supply power to it, we need to observe that which position has more water, so we can avo...

The problem of blurring the screen after the iPhone 6 started has been bothering everyone. Today, we invited the VIP Pro Shop team . They have a good way to solve this error, please check the article below. Remove the iPhone motherboard, we found the upper part is seriously deformed. For the iPhone blurry screen problem, first we need to measure the grounding resistance value of the iPhone display socket J2019 via digital multimeter , the resistance value all is normal. Since the resistance value is normal, next we need to remove the iPhone display IC U1501. Measuring the grounding resistance value of the iPhone display IC J219, we found the A4 pin is shorted, A4 pin touch 5.7V power supply, it is connected to iPhone black touch IC and some filter capacitors. Because the upper part of iPhone motherboard is deformed seriously, and the iPhone black touch IC is easy to damage, so remove the iPhone black touch IC. Pic 2 However, it is still short-circuited after re...

Regarding the iphone 6S Plus No Service and WIFI error, many mobile phone maintainers have encountered it, but many customers have reported that after getting the mobile phone repair shop to fix the problem, their iPhone will show no service or WIFI error after some time. This is a headache, but we have the privilege of inviting professional phone repairmen, who will share a maintenance guide to check out the following article. Trouble phenomenon:  An iPhone 6S Plus has no signal and no service when insert the SIM card, after asking the customer, we known that the iPhone no service after booting is caused by the customer fixing the WIFI failure himself. Repair process: Power on iPhone 6SP, insert the SIM card to test, it did display "no service". Carrier signals can be manually searched, but unstable. Continue testing, the signal is normal when you turn on 4G in Cellular Data, it can connect to the 4G network. It's normal to make phone calls and brows...

A lot of people posted questions about the iPhone 7 Home Button in the forum. They tried a lot of solutions, but the iPhone 7 Home Button still doesn't work. How to solve this problem, today , the  vip pro shop team  will share with you one. An effective solution to get your phone back to work! We got an iPhone 7 from the customer, the fault described that the home button has no return function. When press the home button do have no any reaction.  Go to Settings>Touch ID & Password,“Add a fingerprint turn out grayed. We judged that the iPhone 7 home button is completely damaged. Is it due to the faulty Home Button Fingerprint Flex Cable that the home button function won't work off? In order to fix the home button, we need to disassemble the iPhone with phone opening tool  . First of all, remove the display assembly and take out the logic board with QUICK 861DW Hot Air Rework Station, then remove the vibrator, speaker and charging port flexibl...

We received an iPhone X with failure, the customer described that the iPhone X fell into the water，the Apple rejects warranty, now the iPhone is in recovery mode, and it reports 4013 error when restore it. According to description of the customer, the iPhone fell into water, but not dropping, in this case, we can exclude the baseband problem. After received the iPhone X, first we restore iPhone by iTunes, the iTunes reports an unknown error 4013, and it’s as same as to the problem of the iPhone baseband. Quit the recovery mode, disassemble the iPhone, and connect it to DC power supply to check the iPhone current. The iPhone X can enter the IOS system when the iPhone screen isn't connected, and the iPhone can be turned on smoothly when the front receiver flex cable isn't connected.  Observe the iPhone display screen under the Stereo Zoom Microscope , we found the iPhone receiver has the trace of the water. Remove the front receiver sensor flex cable, we found the p...

The iPhone 6S receiver has no voice when it is in calling, we can't hear the voice from another side, we can hear from each other when we turn on speaker on iPhone.  According to our repair experience, the iPhone receiver no sound, but the iPhone speaker can hear the voice, this problem is usually caused by iPhone receiver, receiver flex cable, receiver circuit or iPhone audio IC problems. First we need to test the iPhone 6S. Power on iPhone 6S, go to Settings->Sounds & Haptics to test the ringtone, the ringtone voice tested is normal. Make a phone call to someone else, the receiver has no sound, but the speaker is normal.  Now, replace the receiver and flex cable, and then test the iPhone 6S, but the failure still exist. Use digital multimeter to measure the diode data of receiver signal 1 pin and 3 pin that on the connector J3100, the data measured are normal. Check iPhone schematic diagram via WUXINJI Dongle , we know that the 1 pin and 3 p...

Today, a customer brought his iPhone6S, hope we can help him, his iPhone 6S accidentally drop into water, and then the iPhone 6S won't turn on anymore, how to fix it? Here is the guide!  Disassemble the iPhone 6S by phone opening tools, connect iPhone motherboard to the DPS DC power supply, it leaks 120mA, after triggering, the current is stuck in 360mA.  Remove the iPhone motherboard, and observe it, we found the iPhone baseband power IC, NFC IC, iPhone big audio IC and iPhone display power IC all have traces of water. Clean up the iPhone motherboard with iPhone PCB cleaner, and then connect it to the DC power supply again to observe the current, now the current turns to 80mA, after triggering, the current is stuck in 300mA. At the same time, we found the iPhone display power IC was repaired before, and the corner of iPhone display power IC was damaged. Remove the iPhone display power IC, re-connect to DC power supply , the iPhone motherboard is no lon...

One customer said his iPhone 7 caught in iTunes Error 4013 and required to be fixed. Before repairing, press the power button to turn on iPhone, the phone stuck in iTunes recovery mode, can not access the system. Next, connect it to the computer and recover through iTunes, the error 4013 occurs during the recovery process. The phone boots again. Fault Analysis iTunes Error 4013 of iPhone 7 usually caused by pseudo soldering or damaged CPU. The error may be related to the power supply of the baseband PMU or NAND flash. Since CPU repair is very difficult, so we can check the power of the baseband PMU and NAND flash at first. Connect the iPhone to the DPS DC power supply   and measure the voltage of the baseband PMU C5623 and C5631. The result shows that the values of C5623 and C5631 are normal. So we judged that the power supply of the baseband PMU is normal too. Fault Repair Let's pay attention to the NAND flash power supply, remove the black adhesi...

Regarding the iPhone 6 Plus No Displa problem, many people have encountered this problem, we received an iPhone 6 Plus to repair, the faulty described is that this iPhone 6 Plus doesn't display, after replacing the iPhone display power IC, the problem is still exist, and they have no idea how to fix, so they send iPhone to us.  Disassemble the iPhone 6P by phone opening tools, carefully take out the iPhone motherboard.  Put iPhone motherboard under the Stereo Zoom Microscope and then use QUICK TS1200A hot air gun to re-weld the iPhone display power IC that has been replaced by co-worker, and then test it, but the iPhone screen is still not display.  Now use digital multimeter to measure the power output voltage -5.7V and 5.7V of the iPhone display IC, there is no output, which means the iPhone display power IC doesn't work properly. Open the WUXINJI Dongle to check U1501 working principle, we know that if the iPhone display power need works properl...

Have you ever felt panic when your phone battery is at 5%? especially you are outdoors, can't find any plug to charge it, nothing goes with you, you may feel frusrated at that moment. But today what we will talk is not only about the phone battery low power, but also the charging issues. Such as, no little lightning symbol appears next to the icon, no happy little electronic beep to signify charging. You are trying to do it, but no idea about it, then these tips may can help you fix your iPhone about this problems, here we will are happy to do that. Almost all of peopel will focus on the charging port, the charging port is where we connect the phone. This is often a lightning connector on newer iPhone models or micro-USB ports. As we known, we can use the lightning connector to charge the battery, with other devices like external monitors, laptops, speakers etc. So it is a great possibility to get damaged. It seems we have found the murderer, so we need to d...

An iPhone 6S doesn't boot after dropped, it has no response when we press the iPhone power button, we need to fix it. Carefully disassemble the iPhone 6S, remove the iPhone display assembly, disconnect the iPhone battery, and then take out the iPhone motherboard. Connect iPhone motherboard to DC power supply , there is no current. The iPhone motherboard doesn’t have an obvious short-circuit phenomenon.  Short connect boot pin, and then turn it on, the current tested is larger than normal, which means that a voltage in the boot circuit is short-circuited. Use digital multimeter to measure the diode data of main power supply for each circuit on the iPhone motherboard, we found the diode data of PP_CPU voltage is smaller than normal value.  Because there are many components are connected to the PP_CPU, so we are going to use rosin method to find out the short circuit part.   Put iPhone under the Stereo Zoom Microscope, apply rosin to the solder...

Iphone 7P can't be turned on, do you have a better solution? Many people have discussed this issue in the forum, but there is no complete solution. Fortunately, today,we will provide you with some solutions, please see the example below. Received an iPhone 7P from the customer, the fault described is that the phone can not be turned on. First, insert the iphone power cable to measure the charging current, the incoming current about  200 mA, still jump. Connect to the computer, it won't turn on.  Next, disassemble the machine and connect DC Power Supply , we find no current. There is no leakage on the front side, triggering a large current, which reaches 1.9A. Then, it’s easy to spray rosin to power on, current appeared. Picture 1 When we saw this, we all feel frustrated. Does the main power supply has failed? We decide to open the circuit diagram. And open the hot spot, we find there is the NAND flash power supply. Test whether there is a short circuit in t...

How to quickly solve the problem of iPhone 7 Plus Won't Charge and No Sound, you can check the solution below to get your phone back to work. Fault Description This iPhone 7 Plus accidentally fell into the ground, and then the iPhone camera won't take pictures, the iPhone handset has no sound, and the iPhone is not charging.  Repair Method After received the iPhone, it has many problems, but we need to fix it one by one, first we need to solve iPhone charge problem. Plug the iPhone lightning cable, we confirm the iPhone 7P is not charging. Connect iPhone 7P to the computer, the computer also can't identified the device. Now, we confirmed that iPhone 7P charge problem is caused by iPhone USB charge IC .  Remove the USB charge IC from the iPhone motherboard, use digital multimeter to measure the grounding resistance value of the solder point on the solder pad, we found the resistance value of the C3 is infinitely large, and this signal point is connected ...