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Repair information and guides for the iPhone 6S released by Apple on September 25, 2015. Models: A1688, A1633

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Bluetooth not working iPhone 6s: hardware issue?

My Bluetooth has been acting up lately. When i go into settings it says that my Bluetooth is off, or unavailable, and when i click the Bluetooth setting it has a spinning wheel where the on/off switch should be. I has a suspicion that this was a hardware issue, so i disassembled my iPhone and took out the logic board. Not really knowing what i was doing, i put it back in and reassembled it. And the Bluetooth actually started working! But after a few hours the same issue occurred…

Considering that my Bluetooth started working after i disassembled, then reassembled, my iPhone, this is most likely a hardware issue. So I am wondering what I can check/adjust in my phone to impact the Bluetooth connection? There really isn’t a lot of information about where the Bluetooth module sits in the iPhone 6s hardware. Some places say it is linked to the WiFi, but the WiFi on my phone works just fine.

Where inside the iPhone does the Bluetooth functionality sit? Appreciate any tips or tricks that would help me solve this frustrating issue! :)

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On the 6S there isn’t anything you can really check outside of the logic board itself as far as Bluetooth is concerned. You have a shared IC taking care of WLan and BT on top of the board, a power line between the IC and PMU and a few data lines between the IC and the SoC, that’s all.

There’s nothing to be done for a Pro either other than taking down the Wifi/BT IC and that’s a troublesome repair hardly worth the time and trouble only to restore the BT functionality. Would probably cost you less and be just safer buying and replacing the logic board yourself.

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