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How to repair iPhone 8 stuck on Apple logo

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We got an iPhone 8 from a customer and his iPhone 8 card was on the White Apple and could not be opened. What caused it? How to fix this fault? Open the iPhone and the Apple logo displays normally. However, the phone card is on the Apple logo and cannot be fully activated. Connect your phone to your computer and recover from iTunes. Then insert the SIM card and activate your phone. The Home Button gets unresponsive with returning function and the phone fails to activate completely. Disassemble the phone with iPhone opening tool kit(VC862) and disconnect the battery. Then remove the display assembly. Use digital multimeter to measure the power supply voltage of Home Button. The measured voltage value is 3.3V, 1.8V and 2.75V. Normal voltage value for the three are normal. Then, remove the Home button and check if the iPhone fingerprint flex cable is damaged, in fact it is in a normal state. To further confirm the fault point, we replace with a new display assembly. Get the
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How to fix iPhone 6 Plus rear camera does not work properly

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The customer sent us an iPhone 6 Plus. The customer described that after turning on the rear camera of the iPhone, the display was black and there was no image, and the iPhone rear camera   could not work properly. Switch it to the front camera, the effect is very good, the iPhone front camera can take pictures. How to fix this iPhone 6P rear camera does not work properly? Please read this article. The iPhone 6 Plus rear camera doesn't take pictures, but the iPhone front camera can take pictures, which means the public control part is normal, we only need to look at the circuit camera only for the back of the iPhone. Firstly, we need to disassemble the iPhone 6 Plus. Use JM-P01 Phone Teardown Toolkit to disassemble the iPhone 6P, and then remove the iPhone display assembly. Secondly, replace the new iPhone rear camera. After replacement, the iPhone rear camera still not working, the failure is the same. Now we confirmed that it's not the problem of the iPhone rear ca
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How to repair iPhone 6 Touch ID can't work with fingerprint flexible cable

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The problem with the iPhone 6 Touch ID not working properly has been a tricky business for service technicians. The truth is that about 80% of iPhone Touch ID failures are caused by elastic damage to the home button. If your iPhoneTouch ID doesn't work, do you know how to fix it? Today our phonefix shop team will teach you how to fix this problem, please read below. Disassemble the phone and remove the iPhone display assembly . Then check the logic board connector J2118 for moldy condition and dry Joint. We found no abnormal thing. Then, measure the resistance between J2118 and grounding with digital multimeter . The value is also normal. Take down the Home Touch Sensor Assembly and check the home button flex cable. There are obviously broken traces on the flex cable. We preliminary judge that touch ID malfunction is caused by  fractured flex cable circuit. We can fix the fault by replacing the fractured section with a new length of the flex cable. Pry up the back plate wit
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How To Repair iPhone X Rear Camera Socket Drop Off Points

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The customer sent us an iPhone X. Isassemble the rear back camera connector socket, the points drop off from base. How to fix it? Using the iPhone Opening toolkit to remove the phone, we found that the pad was removed before it melted. Observe the board carefully under stereo zoom microscope , we notice the board is a little deformed. Seeing the pad, it's a very tricky problem, but we still need to solve the fault. First, it is urgent for us to process the J3900 rear camera soldering pad, flatten and plaint tin again, next, soldering a jump wire . After finished welding jump wire, we need to wrap it around one by one, and apply the UV flux oil  ,one important is that we also need to measure the resistance value by digital multimeter, luckily, it is normal, now we can weld the soldering pad. Then solder the ball on the jump wire, welding the base. Welding tin to the untouched pin and soldered well. Next, assemble the iPhone X and test, to my surprise, the funct
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New product introduction: JC V1 programmer repair iPhone light sensor and vibrator

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Today, we will introduce a new product: JC V1 Programmer, whose main function is to repair iPhone light sensors, touch and vibrators. JC V1 programmers support iPhone 7 to iPhone Xs Max, whose main function is to read, write and restore iPhone light sensors, touch and vibrator data. Do you want to know how to use this device? Please continue reading JC V1 programmer main features 1. 24-inch HD display 2. Tri-color LED indicator 3. Two small connectors (for connecting function panels) 4. A function panel (including light sensor / touch connector, baseband function connector, vibration connector) 5. Support 2 languages (Chinese / English) 6. Support for changing the function panel 7. Software update (automatic) 8. Support for three lines of code (read/write/burn/save) JC V1 Programmer Specific functions - Repair iPhone Light sensor/ true tone function (iPhone 7- iPhone Xs Max) - Repair iPhone touch vibrator function (iPhone 7- iPhone Xs Max) - Read/Write iPhone l
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Troubleshooting: Fingerprint cannot be entered after iPhone 6 water damage

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I received the iPhone 6S from the customer. The fault description is that the fingerprint cannot be input, the recorder cannot record, and the audio device cannot be found. After testing, the customer described the failure, and the customer said it might be caused by water entering the phone. How to repair it? Disassemble the machine with iPhone opening tool kit and observe the water in the upper part. Disassemble and find that the component on the right audio and the fingerprint IC are corrosive seriously, we cut the shield with Mini Scissors to check further. Remove the corroded fingerprint IC U4040 , capacitor C4040 C4043 and resistor R4041 then clean the components. The fingerprint function recover norma when test. Next, I will deal with the problem of sending messages. The audio chip U3500 looks very clean, but it is more safe to remove the chip, and we can test the value of pin by the way. This is a main power supply for the audio chip. The disconnection means t
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How to fix iPhone X can't boot fault

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A customer sent us an iPhone X, and his iPhone X was dropped to the ground. When he picked it up, he found that iPhone X could not be turned on and reported an unknown error 56. Do you want to know how to fix it? Please read the following article. Since the two motherboards of the iPhone X are connected through the middle column, the pins are easily dropped, and the pins of the iPhone NFC chip to the iPhone CPU may fall. Disassemble the iPhone X, take off the iPhone motherboard, use QUICK 861DW hot air rework station to separate the iPhone motherboard, and then we see that there's a row of pins had dropped off. Open the WUXINJI Dongle to check the iPhone X bitmap, we found the circle around it is all the grounding wire, and only dropped 6 pieces useful pins. The grounding wire doesn't need to be filled, we just need to fill these 6 pieces useful pins, these all are the signal line of the NFC chip, so the iPhone X will report unknown error 56 when it is restor
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