How To Fix iPhone 6 Plus that Won't Connect WiFi - VIP Pro Shop Team
If your New iPhone 6 WiFi Connection are creating Problem read this article and solve your Problem without losing any data. Just after the whole process you have to connect it as a new connection. Now VIP Pro Shop Team will Analyze and solve the iphone 6 Plus not connect to wifi problems.
According to customer description, the iPhone 6 plus is broken before, he replaced two WIFI chips, but the WIFI fault was not be repaired, WIFI still can not open, then he measured the relevant work conditions of the WIFI circuit, there is nothing wrong. Because customer's maintenance skill is good, besides the CPU maintenance and the detailed measurement, he can repair all the common problems. The fault interface of WIFI as shown in picture 4-8-1.
The customer has changed two WIFI chips, and has measured the main working conditions: WIFI two power supply, WIFI-32K clock. So we enter into the first step of repairs directly: Measuring the WIFI circuit of PCIE communication bus, we find the 2 pin of capacitor C0704 to CPU ground value is low, the actual measured value is 221, normal motherboard resistance is 560. Thus, we can judge the problem is from CPU . As shown in picture 4-8-2
The position of the capacitor C0704 is shown in picture 4-8-3
According to the maintenance experience we can judge like this: Generally if the ground value is small, and at the same time it's leading to CPU, It is unable to repair, but we still have a try.
1. Remove the CPU and clean the pad;
2. Remove the glue from the middle of the CPU and repair the solder.
3. Then soldering the lower CPU with reballing stencil. As shown in picture 4-8-4.
4. Filling the tin and soldering it on the motherboard CPU, as shown in picture 4-8-5.
5. Install the upper cover temporary storage after reballing, it shows normal and can reboot normally after cooling device to measure, but when measuring the C0704 capacitor 2 pin, we found that the failure is still the same as before, and the ground value is same as before.
Summary: If you meet the situation, ground value is obviously small and it also connected to the CPU internal, there is no need to remove CPU. To solve the fault you must replace the full suite.
Tips: If you’d like to know more about the preferential iphone repair tool maintenance please read on www.vipprogrammer.com. all of these phone repair tools, and you can find it.
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