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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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Wi-Fi greyed out, bluetooth not working. Wi-Fi Bluetooth ic bad?

My Wireless is completely "greyed out" and Bluetooth is stuck with "spinning wheel".

In Settings: General>About> Wi-Fi Address shows "N/A". However Bluetooth does list a MAC address. But when I access Bluetooth from main Settings Menu, it keeps giving me the spinning wheel of doom.

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I've seen numerous posts and videos stating that its the Wi-Fi module itself. Have seen some videos completely replacing the chip all-together, and others saying it can be from the soldering coming loose under the chip and to just heat the chip to hopefully resolve faulty/loose soldering.

Can you remove and replace the entire module by re-applying RMA-223 paste? Or do you have to solder the chip back onto the board?

Any suggestions, information, or advice would be greatly appreciated.

Thanks.

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There are a lot of iPhone 6S WiFi complaints on the internet. Have you tried all of the software related solutions before going whole-hog in hardware repair.

Replacing a WLAN/BT IC is not a trivial task. Even Reflowing it can cause all kinds of secondary problems. Unless you know the root problem, I would always suggest a replacement over a reflow (or even a reball). If there is a connection problem underneath the IC between the solder balls and logic board pads, a reflow could help. However, if the IC is actually defective or a solder joint is oxidized (and lead-free solder has a tendency to crack and eventually oxidize) than a reflow will not really solve your problem. The other danger with a reflow is that this type of repair tends to attract heat gun warriors who can apply way too much heat to the logic board and damage it elsewhere.

Replacing the IC with a new one and using more malleable leaded solder will give you a better fix. However, this requires considerable skill and the proper tools.

An iPhone 6S is still a highly valuable device. I'm not sure I would try to fix it with blunt force tools. Sure some people have likely succeeded but I have seen too many devices destroyed by well meaning owners.

I would try all the software solutions first and then look for a qualified repair shop that does micro soldering repairs.

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jarred boggs zal eeuwig dankbaar zijn.
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