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So my iPhone 7 volume buttons don't work unless I connect bluetooth headphones, and the volume slider in control center doesn't either. The phone is up to date, I've tried restarting (normal and forced) multiple times. The volume slider in control center just wont move, it's stuck in place. Tried recording a voice memo, it wont even let me record. Please let me know if you have any ideas, Sean
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This sounds like a very common issue with the iPhone 7 (and 7 Plus) that develops with the Audio chip on the board.
My guess is that wired headphones through an adapter also don't work. And your speakerphone button is greyed out during a call. That and voice memos not working are all text book symptoms.
Your Bluetooth headphones work, because they use different circuitry so it bypasses the problematic spot.
It's been documented pretty thoroughly on iFixit already, so I won't beat a dead horse, but chances are you're going to need a board-level technician to fix your issue. There are some spots on the logic board that lose connection to this Audio chip so it needs to be desoldered, and connections to the relevant spots need to be remade with tiny jumper wires.
UPDATE: This guy. You can just peel up the sticker covering all the board components on the back. The loose connections will be along the edge of the chip closest to the NAND (the big silver one in the middle of the board).
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Is this the U3500 big audio IC, or one of the small ones (U3301 etc.)? I'm not qualified to fix this myself, I just want to put pressure on it and see if I can confirm this is the problem.
@seanchrist73264 It'll be U3101. I'll update my post with a picture so you can see which one visually.
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Nothing obvious in the headphone jack, tried repeatedly inserting headphone cord and that didn't help.
Sean Christianson 의