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Solution for iphone 6S Motherboard Water Damaged - VIP Pro Shop Team

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"My iPhone dropped into water and cannot be turned on. It was fixed in Repair Shop, but the problem remains the same. this may be the motherboard damaged by water, How to fix this issue",  Now, VIP Pro Shop Team will provide us with practical solutions. Solution: 1. This iPhone 6S motherboard ’s large area is water damaged and water has been cleaned. There are bumps on the upper board of CPU. After measuring, we find that the power supply of upper board is not short circuit. Plug the adjustable power supply and the standby current is about 0.24A, as shown in picture 1-1. 2. After measuring, we find that the diode data of PP_VCC_MAIN is small, only several tens. The capacitor near Wi-Fi chip darkens badly. The location of darkened capacitor in bitmap is shown in picture 1-2 and its material object is shown in picture 1-3.   picture 1-2 picture 1-3 3. Remove it and now the diode data of PP_VCC_MAIN is more than 100mA. As the water-damaged...
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FIXD: iPhone 6 Plus Report Error 4014 After Nand Memory Expansion

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Today, VIP Pro Shop Team will simplify the steps to tell you how to solve iPhone 6 Plus NAND memory extension to report error 4014, Follow this article and let us know the details and fix it. Fault description: The 6 iPhone Plus can be normally used before, there were no any problems. But after changing the iPhone Nand for memory capacity expansion, it reports error 4014 when flashing it. 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 sho...
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How to Fix iPhone 6s Plus Charging Issue - Look Here!

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The charging problem can divided into many different situations: the iPhone battery power percentage is getting less during the charging, power down status can be charged successfully but cannot charge after boot and unable to recognize USB, etc. First ,we check iPhone schematic diagram on WUXINJI Dongle , we found that the PP5V0_USB(5.0V) that was sent from the iPhone Tail Plug circuit, and then continue sent to the charging IC via the trailing plug interface, and then go through the charging protect tube, finally send it to iPhone USB control IC. After disassemble the iPhone by phone opening tools, remove the iPhone motherboard, use Fluke 15B+Digital Multimeter to measure the 5.0V voltage (PP5V0_USB) next to the charging IC, and then measure the 5.0V voltage (PP5V0_USB) next to the USB control IC to check is it working properly. If both these 5.0V is working properly, then you just need replace the iPhone charging IC and USB control IC. If 5.0V(PP5V0_U...
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