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Have you encountered this issue yet?

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    Votes: 695 56.6%
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Crap. Happened again. Missed alarm as a result. Just updated to 9.1 last night too.

Fix this already.
 
Stick 9.1 on it, it helps.

I did the upgrade and can only hope but it sounds like the bug could still be out there. When I read what it is suppose to fix there was no mention of the power issues. Guess its not a problem o_O
 
For those of you that still have it after loading 9.1 GM (the public non-beta), I'd be sure to file a bug report to let Apple know the magnitude. The bugreport.apple.com site will probably get more internal attention.

This is one weird bug!
 
I have had this happen to my 10 day old iPhone 6 s today. Went to use it and it was off, it was fully charged, when I left it on the bedroom cupboard. Very upset and frustrated by this event, would like to know WHY this is happening to a lot of people. Paid a lot of money for this phone for it not to work properly.
 
There's no way this is normal...the phone is turning off by itself while on standby and the user has no way of knowing
I agree no way should our phones be turning off like this. Mine was fully charged when it turned itself off today.
 
is this incident still happening on iphones 6 and lower? i am planning to buy the 6 because im afraid of this issue happening on the 6s'
 
This is either hardware related or a combination of apps that some of us do not have. I'm going on 15 days with my 6s without this issue, though I feel for those who have it.
 
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I was in 2 stores to examine the 6S in demo.
I have make the turns of the iphones and I in with found one in each store which was blocked out of black screen.
I called the salesman to ask him why it was on a black screen. It made pretence of nothing and it directly made a hardware reset while trying to hide me handling.
I asked him what it did and it tried my to make believe that it started again it simply. I said to him that to make a hardware reset was not normal to start again it.
He did not want to acknowledge me that he very often did it in the course of the day but considering his immediate reaction which was to make a hardware reset without very looking at the extinct iPhone.
It is well a sign which it is a generalized problem.

PS: sorry for translation.
 
Happened today. Apple store ran the diagnostics. Told me it was Starbucks & Bank Of America among other apps causing the issue. I'm restoring new with iOS 9.1. See what happens. Last year it was Wi-Fi disconnecting now it's random shut offs
 
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I don't have either the Starbucks app or the BofA app and I've had this problem come up, so that excuse falls under the category of "pure BS".
 
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Has anyone tried deleting all apps using finger print sensor? Or at least disable finger print ID for these apps?
 
I hate to recommend it at this point, but has anyone that still has the issue tried turning off TouchID totally (use passcode only)?

One way to see if something is tied to the sensor somehow...
 
I keep saying this and I might be wildly wrong but there's something about this that just screams hardware issue to me. I know it's appeared on some older phones (namely iPhone 6) but according to various people the Touch ID component hasn't actually changed in the 6s. It also seems tied to iOS 9 but it's not actually uncommon for new versions of iOS to test and uncover latent hardware issues in phones which were working ok on previous versions.

It just seems odd to me that they patently haven't been able to fix this in 9.1 despite all the claims, and meanwhile there are many phones out there that have not had a single issue on any version of 9. I use Touch ID, I restored my launch day phone from a backup and use iCloud all the time, I have hundreds of apps installed of varying quality and age, I charge every night, I have the dreaded samsung chip, basically reading through the thread I am a prime candidate for this issue and yet for a month now my 6S has behaved perfectly.

If this was happening to me, certainly more than once, I would take the phone back.
 
And there are also many phones where PB 4, 5 and 9.1 DID fix it. And as you say, others where it did not. So it's a very strange case. Either it's software and hardware and a software fix is correcting some cases of hardware variability or there is more than one cause.

We don't know enough to really comment. But I'd definitely try turning off TouchID if you're on 9.1 and still have the bug. If that fixes it, you're ripe for a replacement unit.

If it doesn't, definitely file a bug report.
 
My solution to this nightmare was to return the damn phone and keep my 5s for another cycle, and let's wait that the next generation works properly...
 
As I have said before mine only did it 1 time and I got it on the launch day of the 6s I turned off icloud & touch ID as well and knock on wood just 1 time for me, So very strange problem for sure( I do backup to iTunes )
 
As I have said before mine only did it 1 time and I got it on the launch day of the 6s I turned off icloud & touch ID as well and knock on wood just 1 time for me, So very strange problem for sure( I do backup to iTunes )
If you've had to disable major features of the phone then you haven't really solved anything; there isn't any inherent problem with Touch ID in iOS 9 so the real issue may well be in your phone, and you are simply masking the problem by turning that feature off.

If it was me, I'd turn all that back on and just use the phone; if you're unable to do that (because it starts locking up again) then take it back. You've paid a lot of money for this.
 
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I keep saying this and I might be wildly wrong but there's something about this that just screams hardware issue to me. I know it's appeared on some older phones (namely iPhone 6) but according to various people the Touch ID component hasn't actually changed in the 6s.

I think they said in the keynote that it's a new sensor in the 6S: the tech specs just say "improved touch ID sensor" which I guess could be software or hardware, but several reviews mentioned a new sensor as well. There have been reports of people with older phones who never had the issue before iOS 9 having it afterwards, which says software issue to me regardless of whether the sensor hardware's changed or not.

It just seems odd to me that they patently haven't been able to fix this in 9.1 despite all the claims

They didn't claim to have fixed it in 9.1, there's nothing about this bug in the release notes. It's entirely plausible that they are still working on it: I'd imagine this type of intermittent issue can be very difficult to pin down and it's still only a month since the phones and iOS 9 came out.
 
It's now been one week since I had this issue (one occurrence). I've had the 6S for 20 days now. BTW I did not disable any features and I'm on 9.1.
 
I think they said in the keynote that it's a new sensor in the 6S: the tech specs just say "improved touch ID sensor" which I guess could be software or hardware, but several reviews mentioned a new sensor as well. There have been reports of people with older phones who never had the issue before iOS 9 having it afterwards, which says software issue to me regardless of whether the sensor hardware's changed or not.

Apple did announce it as "second generation" but successive teardowns have revealed the same part - it's the processing which has changed.

As I said before, new software can reveal existing hardware issues which simply weren't apparent before. I once had a iPhone 3GS which was perfect until a particular minor point update of iOS which caused it to crash during calls; I was convinced it was just a bug in iOS but when I raised it with Apple they told me it was hardware and offered a swap, which I took, slightly disbelievingly. Of course they were right - the new 3GS on the same version of iOS restored from the same iTunes backup and with the same sim etc suddenly worked perfectly. Conclusion - it was a hardware fault, revealed by the new iOS but not caused by it.

They didn't claim to have fixed it in 9.1, there's nothing about this bug in the release notes. It's entirely plausible that they are still working on it: I'd imagine this type of intermittent issue can be very difficult to pin down and it's still only a month since the phones and iOS 9 came out.

Various people did claim it was fixed in the betas (and quoted apple sources to that affect), and were then contradicted. It has been a month, but it's a month in which many people, myself included, have not had a hint of this problem that some believe is endemic to iOS 9.

Question: has anyone swapped their phone out and still had the issue?
 
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I'm on an iPhone 5s but have been experiencing massive problems just like this with iOS 9 and 9.1.

I actually started having problems with iOS 8 in May 2015. My first iPhone 5s (which was 6 months old) turned off one morning and could not be turned on by force starting, and was undetectable by iTunes.

The replacement was working fine with iOS 8, until 2 weeks ago when I updated to iOS 9. Since upgrading to iOS 9, my touch ID stopped working, and I would notice in the morning that the phone had restarted in the middle of the night, while on the charger. A few days later, I unplugged the phone from the charger at work, and it began cycling between the apple screen (about a minute at a time) and the blue screen of death (about 2 seconds) before turning off and beginning the cycle again. I attempted to hold down the home button and power button for up to a minute at a time, and nothing could restart it. It was 5 months old. To make matters worse, my 2010 Macbook Pro was getting repaired at the time, after crashing while trying to install El Capitan OS X, so I couldn't plug it into my computer to try and back it up to iTunes, either. I ended up having to take the 5s into the shop as well, and the phone was undetectable in iTunes. In a matter of a few days, Apple's updates had ruined both my Macbook and 5s completely.

Verizon provided me another replacement 5s (my third in a year) about a week ago, which has been now crashing 2-6 times a day. Periodically it turns off while I'm using it, other times it restarts on its on while charging, other times it just turns off and I have to hold down the home button and power button for a minute to get it to restart. This morning I had another flash of the bright blue screen of death, but it luckily came back on. Like many others, I'm thinking there may be something corrupt in my iTunes backup that the updates simply cannot handle, and am about to wipe my phone and restart. I took it into Apple 2 days ago, and they ran the diagnostics and the long list of crashes, and said there was nothing else wrong with the phone, just to update everything I can (the operating system as well as apps), as often as I can. The employee had me update to 9.1, saying it may fix it - it has crashed 7 times today, alone. I have little confidence in any of their updates fixing anything at this point. As a sidenote, my Macbook Pro STILL will not run El Capitan, and is still in the shop with Apple after 2 weeks. Diagnostics show "nothing wrong with it," a new hard drive has been installed, and yet it still crashes constantly since the update.

If anyone knows of a class action suit against Apple regarding all of this, please let me know. I'd love to join.
 
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