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2017年9月22日发售。型号有A1864,和A1897,可选GSM 和 CDMA 网络,存储有64GB和256GB,颜色有金色、银色和深空灰色。

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Why is my wifi grayed out?

Hey, I have an iphone 8 plus that has wifi grayed out, but will still connect to cellular. Any ideas? I have already reset it entirely and it still didn’t work.

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Broken wifi chip which requires board level repair, that’s it.

Wifi and cellular are unrelated.

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Why can't it be the wifi antenna?

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It’s definitely not the antenna, the logic function is not working, so it’s a chip issue.

It’s like when your car won’t start, but you are suspecting there is something wrong with the tire.

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If the antenna is “broken” (common with iPhone 6), you get very low signal. When the WiFi function altogether is missing, then the wifi circuit is down. A lot of times from drop damage (common with iPhone 7), sometimes from electrical damage (common with iPhone 6s).

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Sounds like you are having issues with your wifi antenna. Your in good luck it’s really cheap.

iPhone 8 Plus Wi-Fi Diversity Antenna

iPhone 8 Plus Wi-Fi Diversity Antenna图片

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iPhone 8 Plus Wi-Fi Diversity Antenna

$11.99

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It's rarely the WiFi antenna. Besides, even if you remove the antenna, you'll still get one or no bars but the function will not be grayed out.

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If the antenna is “broken,” you get very low signal. When the WiFi function altogether is missing, then the wifi circuit is down. A lot of times from drop damage (common with iPhone 7), sometimes from electrical damage (common with iPhone 6s).

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What you are saying is, the TV is not turning on, it is probably the antenna that needs replacing.

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Thanks for all the help @tomchai @rany @refectio

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That sounds like WI-FI chip is damaged or dry soldered.There have two factor that you can solve by this way.

Sometime WI-FI chip dry soldered throw over heat that remove PCB from board and re-hot WI-FI chip on 240 aprox 1 min then check most of the cases are solved.If the problem is still same remove the WI-FI chip then re-ball and fix.

If you have to change the WI-FI chip that need to unbind the Nand chip too.So,you need the Nand programmer to unbind WI-FI address or WI-FI address unlocked.If you have to know further this may help you.Have all process 7,7Plus and 8,8Plus have same process.

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