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Repair information and guides for the iPhone 6S Plus that was released on September 25, 2015. Model A1687, A1634

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Cellular Signal is VERY Weak

I rebuilt my entire phone and after putting it together the WiFi was not working so I replaced all the antennas. This fixed my WiFi issue but now I get terrible service. Which of the three antennas is for cellular service? Everywhere I look all three are described as the network/wifi/bluetooth antennae (so which one is it for each operation?)

Also my camera was bad before rebuilding so I replaced it ... the first time replacing it seemed to work fine ... then I had to take it out to look at the antennas and after re-installing it it now vibrates again ... i'm hoping this is because the camera got damaged at some point during the de-installation/re-installation process.

Thanks for the help!

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Perhaps its because I replaced it with a black housing?? And maybe I need to shave off the paint where the antennas would normally make contact with the housing??

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Okay so I reset network settings and now it doesn't get any service and it's only picking up a weak signal from my 5GHz WiFi not my 2.4 ... and sometimes it shows nothing at all ... bluetooth is no longer working now either ... I've been repairing phones for a long time now and I have no idea what's going on ... before WiFi was strong as well as bluetooth

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I tried scratching off the metal and it didn't help. I'm out of ideas so hopefully somebody else has one

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Hey!

First of all, here is the cellular antenna:

https://de.ifixit.com/Anleitung/Image/me...

It sits directly above the WLAN/Bluetooth-Antenna.

I also replaced the housing about one year ago and did not noticed any issues with the cellular connection. But I also can imagine a bad-quality housing COULD cause it.

If you are sure the cables are connected correctly and have no option to test another cellular antenna I would try to use your old housing to test if it works fine there. Yes, it is a LOT of ugly work to but all back, but finally you can find out if the issue is the housing or the phone.

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Okay ... i'll try that and see how it goes. I looked everywhere for that antennae (for the 6s Plus) and cannot find it. iFixit doesn't even have it in stock and eBay only has the one for the iPhone 6 Plus. Anybody know where to find one short of buying a parts phone?

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I would try disconnecting all of the antennas and cleaning anywhere they need to make conductive contact on both the male and female sides of each connector using a q-tip and 99% isopropyl. I have experienced finger grease interrupting both wifi and cell signal just from touching a connector while plugging it in.

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Franklin Marquette zal eeuwig dankbaar zijn.
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