share some phone repair tools and iphone icloud unlock tool

Customers send a iphone 6s, iPhone home button is not sensitive, often malfunction, or perhaps only some time. It's frustrating, the system tests the fingerprint function to be normal, the return key sometimes presses several times to have the reaction, but has the good news: Many homepage button questions can repair in the home, in this article, has some good repair options to fix a bad homepage button, if you cannot repair it by itself. Disassemble the iPhone by phone opening tools, then replace the fingerprint button and test it, now the home button function back to normal, so we exclude the iPhone motherboard error. Remove the waterproof adhesive covered by the shrapnel button, which is behind the fingerprint button. Put the multimeter  on the corresponding pins, press the switch and test it, the data is normal, so we can eliminate the problem of the switch itself. Put it under the microscope and observe it carefully, we found a rift in the edge of the line, pry the iron ...

Hello everyone, The iPhone 6 Plus can be normally used before, there were no any problems. But after changing the iPhone Nand  for memory capacity expansion,if your iOS device disconnects during the update or restore or if iTunes couldn't tell the device to restore.you might see the iPhone could not be restored. An unknown error occurred (4014). As shown in picture 10-3-1. When we flash the iPhone device, it displays error 4014 before progress bar showing up. It is restored and the serial number could be recognized, which appeares after Nand expansion. This is usually caused by the iPhone USB chips  leading to CPU problem. We get to know it UMT motherboard after disassembly, then remove USB chip U1700 to measure resistance from solder pad to CPU, we find that AP_TO_TRISTAR_ACC_UART6_TXD shows the infinite value, as shown in picture 10-3-2 and 10-3-3. And AP_BI_12C0_SDA is also broken, as shown in picture 10-3-4 and 10-3-5. The layer wire is disconnected, so...

It's a very happy thing to get Apple's high-end smartphone (like IPhone 6s) ,but a few months later, many owners were vexed when devices issues began to emerge. As a matter of fact, several owners of the iPhone 6s have been complaining about various issues, One of the most visible complaints appearing on pertinent forums and websites is iPhone 6S Cannot Boot after Normal Use。 It's not difficult to deal with the issue if iPhone cannot boot after normal use, firstly observe if the appearance is broken or deformed. Open the iPhone screen  to check if there are the traces of water corrosion, battery resistance is normal, then power on and test with multimeter ( 2A am multimeter is recommended ) directly up voltage to 1.8A, it belongs to the symtom of high current. Tear down all the accessories and starting with a single iPhone 6S motherboard, the result is the same, so you can be sure that the accessories or parts are ok. Before we fixed a lot of large current cell phone ...

Although the iphone 6 is very good, very popular, but sometimes in the use of the process does not boot is a common occurrence,or the boot current is 700mA.Picture 9-13-1 1. Disassemble the iPhone by phone opening tools, take out the iPhone motherboard. Connect it to DC power supply  , the boot current shows 700mA, which means there is a power supply short circuit. Picture 9-13-2 2. Open the phone circuit diagram  and check it, we can find that the diode data of PP1V8_SDRAM is low. Picture 9-13-3 3. Measure the diode data the PP1V8_SDRAM with multimeter, the data only have around 100, it is lower than normal data.Picture 9-13-4 4. According to the repair experience, this group abnormal power supply was caused by damaged capacitor at lower right corner of iPhone CPU  . As shown in picture 9-13-5. We just pick it off. 5. After remove it, measure the diode data again, now the data is back to normal. As shown in picture 9-13-6. Finally, assemble the...

Received an iPhone 6P, the current jumps normal and system also can be restored, the only problem is no diplay when booting, After measuring the grounding resistance of display connector and display condition are all normal ,we reinstall the iPhone CPU  , the fault is still existing. Check the iPhone circuit diagram  to measure the MIPI module conditions (required power supply, pull-up resistor, pull-down resistor, etc.). As shown in picture 9-12-1. it could be happening because of a variety of different reasons. The only way to know why it’s happening for sure is to troubleshoot. In this piece, we’ll attempt to discuss the various reasons why this could be occurring to your iphone device(s), and some potential workarounds to get you back into the device. When measuring PP1V0, there is no voltage, the resistance value to ground is 0, we doubt CPU is not installed properly, but it's the same fault after reinstalling. Remove CPU to measure motherboard without short circui...

Received an iPhone 6s to repair, the customer said  the screen is black, but it can receive called,ou’ve tried resetting your iPhone, letting it run out of battery and plugging it is no display, the reason of the faulty is that the phone was dropped, In this article, I’ll explain why your iPhone 6s screen is no display and what you can do to fix it. After receive the iPhone, we press the iPhone power button , but no response. Disassemble the iPhone; take out the iPhone battery and supply power to it with DC power supply , the current is normal. Remove the iPhone screen , and then install the test screen, power on it and test it, the screen can display normally and appear white Apple interface. We thought the screen was damaged by dropping, but when we plug the original screen, it also can be light up, so we can exclude screen problem. The device light up, there are some problems when we are waiting to enter the IOS interface, blurry screen, grey screen, black screen, and it then...

This is very frustrating,iPhone 6s fell into the water, the signal is good, but the iPhone6s without service; 2G signal shows no service; the vibration function cannot be used. step: 1. Power on iPhone, and test it, it has 3G and 4G signal, 2G signal is abnormal, it has no service. As shown in picture 9-9-1 2. Disassemble the iPhone 6s, take out the motherboard, and then connect it to DC power supply, we found it leaking 13mA, the water cell phone 2g signal is not normal. To observe a passing element under a microscope , we found the R4501_RF resistance on 2G PA U2GPA_RF has been moldy, as shown in picture 9-9-2. Touch it lightly with tweezers , it fell down. The PP_VCC_MAIN through it supply power to U2GPA_RF, so it caused the 2G signal to be abnormal. Clean it up and weld it with soldering station  . After finish it, boot it and test it, the 2G signal is back to normal. 3. The vibration function of iPhone 6s is controlled by U3800 PA chip. Use multimeter  to meas...

If your iPhone home button is not working or has become unresponsive, we have some possible fixes to share with you. Fault description: The iPhone 6S home button often gets unresponsive, it doesn't respond after pressing the power button several times. There is one or two times a day will turn into recovery mode. Repaired the CPU and WiFi, 32.768, 24M, NAND were also replaced before, the fault is still existing. The description is shown in picture 9-8-1. While reasons aren't clear, the solutions can help you fix an unresponsive home button on you iPhone 6S home button and other iOS devices. Step 1. Measure the iPhone motherboard with multimeter , power-on current is normal, then install the assembly to test, all of functions are normal, so we put aside to charge. An hour later, we find that home button has no response by pressing several times. The iPhone device could be lighted by pressing the screen-lock button, but home buttion is responsive after screen is locked, ...

Generally, the best way to fix iPhone 6 Cannot Boot that won’t turn on is to connect your iPhone to iTunes via desktop USB or reboot into recovery mode. In this post, I share relevant scenarios where users are having troubles booting up their iPhone 6. Customers said his iphone 6  can not boot, the iPhone device shows large short circuit when connecting with adjustable power supply . Disassemble the device we find that the flash position is hot, so we tear it down and find the solder pad is burned a hole. As shown in picture 9-6-1. PP_VCC_MAIN is short circuit, but it turns normally after removing L1605 inductance, however, the other end of L1605 to U1602 flash chip is still short circuit, so we directly dig from the burning hole till it's not short. There are 2 useful wire below the hole after we dig it: one is from U1602 flash chip E3 pin RCAM_TO_LEDDRV_STROBE_EN  to rear camera 30 pin; the other is from CPU to transposon interrupt signal ALS_TO_AP_INT_L  of ...