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windywalks

macrumors 6502a
Original poster
Mar 12, 2004
613
643
Hi!

My iPhone 6 plus has been exhibiting random vibrations that cause the phone to display the Mute icon every now and then.
The mute switch works just fine, it's not loose in any way, and I keep the phone in silent 99% of the time.
Tonight, when I was using the iPhone with Sleep Cycle under my pillow, whilst the iPhone was in Do Not Disturb mode, it showed the Mute icon again when I picked it up to check the time, even though it was on silent.
Just now, when I was walking, it also vibrated without a reason, and no, I don't have any rogue notifications, push e-mails without a badge etc. that could cause that.
The repair guys suggested I do a system restore and set it up as a new iPhone, but this obviously didn't help.

It already laid in an Apple Certified Repair workshop, where they just put it on a desk and it did nothing for a whole week, and now I have it back, since it didn't occur while it was in their hands.

Has anyone had something like this happen? Do you have any ideas how I might invoke this behaviour so that they actually take it in and exchange it?
 
Mine had the same problem. When the switch is in the mute position it would move just the slightest amount, causing it to unmute, then mute real quick, with the vibration. Try touching the switch when its in the mute position and see if that causes the problem. May or may not be.

Apple replaced mine completely, no questions asked.
 
Mine had the same problem. When the switch is in the mute position it would move just the slightest amount, causing it to unmute, then mute real quick, with the vibration. Try touching the switch when its in the mute position and see if that causes the problem. May or may not be.

Apple replaced mine completely, no questions asked.

The thing is, the mute switch is really tight, so that can hardly be the cause, it's probably something deeper.
Some hard to notice short circuit maybe, that relies on temperature/humidity...

Now I'm testing another hypothesis - getting it warm to the touch. It hasn't been acting up for the past few days - the ambient temperature was mild to say the least. Today it has been warmer outside - I went out for a drive, picked it up from the cupholder - it vibrated, came home took it out of my pants pocket - it vibrated.

If only I could at least pick it up on a video clip, but this seems so random and hard to reproduce, that I'm going to be hard pressed to demonstrate it to an Apple tech.
My friend is an Apple tech, but he still has to at least be able to see it in action.

I'll probably have to come back with a bottle of bourbon and ask him to carry the phone around in his pants for a day or two ;)
 
The thing is, the mute switch is really tight, so that can hardly be the cause, it's probably something deeper.
Some hard to notice short circuit maybe, that relies on temperature/humidity...

Now I'm testing another hypothesis - getting it warm to the touch. It hasn't been acting up for the past few days - the ambient temperature was mild to say the least. Today it has been warmer outside - I went out for a drive, picked it up from the cupholder - it vibrated, came home took it out of my pants pocket - it vibrated.

If only I could at least pick it up on a video clip, but this seems so random and hard to reproduce, that I'm going to be hard pressed to demonstrate it to an Apple tech.
My friend is an Apple tech, but he still has to at least be able to see it in action.

I'll probably have to come back with a bottle of bourbon and ask him to carry the phone around in his pants for a day or two ;)

I'm experiencing the same (I guess) bug.
My 6Plus also has this random vibrations without any notifications.
Unnecessary to mention, that I checked all settings (mail, push notifications for apps etc.)
Sometimes (very rare) the display also shows the mute icon.
99% of the time it happens, after locking the phone and putting it in my pocket. (I also use a pouch type of case, but this is also very loose and not too tight to press any buttons)
Only one time I experienced it while my iPhone was laying on the table.
After locking the phone, I can feel the vibration in my pocket. It happens with a little delay. Since all buttons (powerbutton, mute) are in a good condition and not loose or anything, and they aren't exposed to any pressure in my pocket, I think this has to be a software bug. Twitter is also full with this topic. It started right away with iOS9. Now I'm on 9.1.
What's your actual status? Any solution?
 
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Yup, my iPhone got exchanged for a new one and it still happens randomly, however it doesn't happen a few times a week or day, maybe just two or three times a month.
My solution to this problem was just having the phone exchanged for a new one after some discussion, that's it.
There's no amount of restoring and tinkering that would fix it.
 
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