share some phone repair tools and iphone icloud unlock tool

Before few days customer  said trying to update his iPhone 6 plus,and close to the finish of the update he had a picture of a cable to connect to iTunes, he connected it and when he pressed Update, again close to the finish, he had an error,ITunes reports unknown error (56) when rooted. Repair Process First root it to make sure whether it reports error (56). After rooting and testing, it does report error (56). In most of the cases, faulty camera circuits and NFC circuits will cause such a problem. Tearing it down and check the motherboard, the motherboard has been fixed. The previous maintenance have fixed NFC major control chip U5301_RF, its location is shown as picture 7-20. Other chips are not fixed by observing its appearance. In real repair cases, MIPI bus could cause error (56) report. First measure the diode data to ground of the MIPI bus of the front and rear camera  by multimeter . These data are normal. Customer said that he could use the iPhone normally before u

hi,friends,iphone 5S itunes show 40 error,do not worry,vipprogrammer can help you,Customer said that iPhone 5S iTunes reports unknown error (40) when updating firmware. Repair Process As the matter of computer system software, when rooting, different computer may have different circumstances. After receiving iPhone and rooting it, I find that when the progress bar goes about one tenth, as shown in picture 7-16, it reports error (40). Picture 7-16 Judging from my repair experience, when the progress bar goes about one tenth, it reports error (40), which may be related to NAND FLASH . Next, remove motherboard and pry up NAND FLASH, as shown in picture 7-17. Picture 7-17 Use JC NAND FLASH Test Fixture  to test NAND FLASH, finding no series number in NAND FLASH, as shown in picture 7-18. Thus I know that the NAND FLASH is damaged. Picture 7-18 I am preparing to replace NAND FLASH. As the series number is stored inside NAND FLASH, at the same time, I have to replace t

Other maintenance man sent it and said: it cannot be charged, but after replace the USB management chip , the charging went back normal. However, after assembling it, he found that it sometimes can get into IOS and sometimes screen turns red and roots itself. Repair Process As other maintenance man have replaced USB management chip, I worry about that the USB management chip is damaged or the solder is worse, so I replace the chip again. But the problem remains the same, which suggests that USB management chip is workable. Next I use the smallest peripherals method to exclude the faulty places. Unplug all the connection cable from other peripherals to motherboard, such as camera , sensitization, as shown in picture 7-14. Picture 7-14 Put the single motherboard with display flex cable  on electric tester. After unplugging all peripherals and testing many times, the problem remains the same, which suggests that the problem is unrelated with peripherals. Judging from my rep

Mobile phones have become an indispensable part of our life. In the process of using our cell phone, we will come across lots of issues. It affects our lives, work and study. When your iphone 6 touch screen was broken, don't worry, here is solution. Mobile phone screen replacements are the most common maintenance work. Vipprog will give you detailed iPhone 6 screen maintenance wizard. Many people will purchase a “Do It Yourself” kit to replace their iPhone 6 screen. This situation happens that your screen condition is not too bad. If the situation is terrible, we strictly advise against attempting to repair your own cracked iPhone 6 screen. Because DIY iPhone screen replacement often leading to greater repair costs and in many cases it is beyond economical repair. In our maintenance process we will face over 19 screws in iPhone 6 screen repair. And each of these screws have to be carefully taken out, and put it in right position. Putting the wrong screw in your iPhone 6 can actu

When you're swimming accidentally the iphone falls into the pool, you must dry it immediately.iPhone 5S screen displays abnormally after dropping into water and replace screen backlight module. Trouble Phenomenon When water gets into iPhone, the backlight module will be damaged to a certain degree. The trouble phenomenon of backlight module with water is shown in picture 6-89. Picture 6-89 Repair Process As for those iPhones whose backlight module is damaged after water gets in, replacing screen assembly  can settle the problem but that will cost too much. Customers will find it hard to accept it. If you can master the way to replace the backlight module, you can save much from for you customers. The tools and assistance materials are 530 cleanser, non-dust cloth, backlight module, Electric Soldering Iron  and pre-heater platform , as shown in picture 6-90. Picture 6-90 First use electric Soldering iron to burn out the backlight module power supply circuit, as

Customer said that 3/4 solder joints have been dropped when he had the storage expanded. After jumping wire  and rooting, iTunes reported error 4005 and screen displayed white Apple logo. step: When I receive the motherboard, it has no NAND Flash  and many jumping wires on PCB with green oil , as shown in picture 6-86. Picture 6-86 After observing the outer looks of the motherboard, I use multimeter  to measure the diode data of all the solder joints and they all have data. But, comparing these data with that I get from my previous repair cases (picture 6-87), I find that pin G5 should be about 700 and J5 should be about 500 (notice: different multimeter shows different data). While these two joints is about 700. The two data should not be the same. I guess that someone must jump the wrong wire. Picture 6-87 As shown in picture 6-88, when scratch the green oil carefully, I find that there is a wire and a via. Measure its diode data. The data of wire is about 700 while

When mobile phone maintenance technician test and repair phones, the same common phenomenon will be met for instance the demand of soldering components on PCB, components disassembly and replacement, etc. Under such kind of situation, the soldering tools are specially essential to make perfect mobile phone maintenance for a professional technician. So which tools you are exactly demanded for ? and do you really got right operation on them? Here I'd like to introduce one by one! 1. Anti static Solder Iron Anti static solder iron is the common tool for soldering or disassembling PCB components on mobile phone circuit board. Owing to the difference between those components, you need precision solder iron with different rate, so it's better for you to prepare more. Tips: Do not leave solder iron around after finishing repair. Even if cut power off, there is still very high temperature on the tip. Please switch off power and put on holder when you done with them! For cho

It has no backlight after dropping into water.The backlight is fixed, but front camera is normal while the rear camera  is not. The 2.8V chip is replaced. Under the repair rules the simple first and the complicated later, tear down iPhone and replace the rear camera subassembly. When we are going to replace it, we are surprised to find that some components near the camera socket J3200 are eroded. After checking the circuit diagram , we find that three inductors are missing. The three inductors in bitmap are shown in yellow points in picture 6-50. Picture 6-50 Their material objects are shown in picture 6-51. Picture 6-51 In real repair cases, we directly short connect the two ends of the inductor to speed up. After the whole iPhone is fixed, we find other workable inductor to assemble. After short connecting the two ends of the inductor, measure the diode data to ground of its socket. The data is normal. We think it recovers now. So we assemble camera and energize it to

Trouble PhenomenonThe speed of life, the frequent use of mobile phones. More and more phone failures follow,Customer said that his iPhone has been dropped. It can be turned on to use normally, but after being used for a while or when in charge, the screen turns white and reboots repeatedly. Repair Process According to the description, after measuring, we find that CPU  is pseudo soldering. We have to remove CPU and remount it. First remove CPU and clean the exposed copper on its solder pad. Use UV Solder Resist  to paint the exposed copper and use UV ultraviolet Light Lamp  to solidify it, as shown in picture 6-46. Picture 6-46 At the bottom right corner, there are missing joints. One of them is the pin to fingerprint EEPOM. Press the pin with multimeter  and there is diode data if we press hard. Thus, we know that the board is disconnected. Doing Jump wire(VC512) from the solder pad, as shown in picture 6-47. Picture 6-47 Solder CPU and jump the wire to fingerprint EE

Customer said  accidently used the 1mm longer screw for the buttom left hole broke some traces. IPhone 6 displays nothing when turned on. Customer said that the screw hole is twisted through. how to fix? step: This iPhone 6 has been fixed before, but the problem remains the same. After tearing it down, we find that three screws  are twisted deep. The problems are no backlight, no display and no ±5.7V power supply of screen. Observing under microscope , we find that the four circuits under those screws are disconnected, as shown in picture 6-37. Picture 6-37 One of the four circuits is the open signal LCM_TO_CHESTNUT_PWR_EN of display power supply chip . This signal connects power supply chip U1202, as shown in picture 6-38. Picture 6-38 The signal LCM_TO_CHESTNUT_PWR_EN connects display power supply chip U1501, as shown in picture 6-38. Picture 6-39 The signal LCM_TO_CHESTNUT_PWR_EN connects display socket J2019 through the inductor FL2035, as shown in picture

This iPhone’s problem is turn on failure. The customer said water flew in it before and he tore down it to fix the touch flex cable  and some parts of Wi-Fi. After using for some time, it cannot be turned on. Tearing it down and we can see that the waterproof label discolored, as shown in picture 6-26. Picture 6-26 The waterproof label in normal iPhone is white, as shown in picture 6-27. Picture 6-27 Repair Process After plugging adjustable dc power supply , it shows large current. We judge that the voltage of standby circuit is short circuit. Use the diode gear of multimeter  to measure it and find that PP_VCC_MAIN is short circuit. Observing the motherboard  carefully, we find the capacitor C5202_RF near Wi-Fi chip is a little dark and its tin plate drops a little. Remove C5202_RF (picture 6-28) and measure the voltage of PP_VCC_MAIN, which is no longer short circuit. Picture 6-28 Energize iPhone and turn it on. Now it can get into IOS system normally. We think