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2014年9月19日发布的iphone 6 Plus有着比iphone 6大的5.5英寸屏幕。

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It only sees 5GHZ WiFi APs

I got this iPhone by trading my Android phone from a friend. When I’m about to connect this phone to my WiFi, It can’t detect my WiFi although it can detect my neighbor’s WiFi (which is across the street). I made sure that my router isn’t set to hidden. My friend said that it can detect 5GHz WiFi better than 2.4GHz. So what I did was put the phone very close to the router and it did detect. I replaced the antennas that I suspect to be faulty (the antenna located in the upper left corner and the one under the motherboard which has a wavy ribbon design). After replacing, it did not do anything. I wanted to know what antenna should I replace for the 2.4GHz WiFi. I believe that it’s not the WiFI IC because I can connect to a 5GHz WiFi without any problems and also 2.4GHZ WiFis but with weak reception.

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Sorry for the late reply, thanks for sending me the video :D. What I need to know now is the location of this resistor on an iPhone 6+ motherboard.

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It's likely a shorted resistor. This video is for the 6 but the 6 Plus is very similar. I had a 6 Plus with exactly what you're describing and replacing the resistor (my first microsolder repair!) fixed it.

https://www.youtube.com/watch?v=4AJK4mIF...

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I think you meant a shorted "capacitor"... ;>).

https://d3nevzfk7ii3be.cloudfront.net/ig...

May I know what this is? It is located near the rear camera.

That's an NFC flex, it shouldn't have anything to do with your WiFi issues.

Yes, capacitor. Faux pas. :-)

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