Wi-Fi signal weak after replacing housing

Question

iPhone 6s Plus

iPhone 6s Plus 发布于2015年9月25日,有两个型号A1687、A1634，网络制式有GSM、WCDMA，存储容量有16GB、64GB、128GB可选，机身颜色有银色、金色、深空灰、玫瑰金。维修iPhone 6s Plus和前代产品相似，需要螺丝刀和撬棒等。

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Leo Terray @lucky962

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发帖于: 2018年5月15日

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Wi-Fi signal weak after replacing housing

(Rose Gold is old housing and Silver is new housing)

I've recently replaced the housing for my iPhone 6s plus, every thing seems to work fine except for the Wi-Fi signal I think cellular and bluetooth signals are also weakened but Wi-Fi is the most noticeable for me.

The only way to get 3 bars is to stand right next to the router.

A weird thing is also that I can only connect to 5GHz internet, 2.4 doesn't even show up. It might show up around once per day or less.

I've compared my new housing with my old one and they both look the same if the colour is not counted.

Thanks in advance for any answers!

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Tom Chai @tomchai

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Color can be the problem.

On the inside face of the case, there are contact areas where the paint is intentionally brushed off to make electrical contact possible, these areas are used for grounding AND antenna feed points.

You can submit a picture of the original and replacement case so we can check for sure.

Example of a bad case:

A good one:

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Hey @tomchai, thanks for your quick reply! I have edited my question to include the photos of my old and new cases. Could you please check them out and let me know what you think is wrong with them?

Thanks in advance for your help!

由 Leo Terray 完成的 2018年5月15日

Looks good enough, then try to replace every sticker or contact clip like for like, some of them are conductive and carries signal.

由 Tom Chai 完成的 2018年5月15日

I can't see anything that might not be normal.

Could me seeing 5GHz internet with more signal than 2.4GHz help making any conclusions?

Edit, I've just bought another case that comes with a lot of parts already installed, assuming I might have broken something, when I try it out on the new case, I will update on the results of the replacement.

由 Leo Terray 完成的 2018年5月15日

I bought another rear casing with all the parts already installed and replaced it using that, it now works perfectly!

由 Leo Terray 完成的 2018年5月25日

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Hey @tomchai, thanks for your quick reply! I have edited my question to include the photos of my old and new cases. Could you please check them out and let me know what you think is wrong with them?

Thanks in advance for your help! — Leo Terray
Looks good enough, then try to replace every sticker or contact clip like for like, some of them are conductive and carries signal. — Tom Chai
I can't see anything that might not be normal.

Could me seeing 5GHz internet with more signal than 2.4GHz help making any conclusions?

Edit, I've just bought another case that comes with a lot of parts already installed, assuming I might have broken something, when I try it out on the new case, I will update on the results of the replacement. — Leo Terray
I bought another rear casing with all the parts already installed and replaced it using that, it now works perfectly! — Leo Terray

iPhone 6s Plus

Wi-Fi signal weak after replacing housing

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