Q: iPhone 6 plus sudden shut off and won't turn on.

This was exactly the right answer to my problem.  Thank you so much.

YAY! Glad you are all set now

Cheers,

GB

same problem, since downloading 9.01 latest update, my phone just shut down and will not turn back on, all I see is a black screen with the apple icon and a progress line underneath which is frozen, what the **** is going on Apple. I wish I had never uploaded the latest upgrade when I was told it was available

Did you try the reset as suggested? Hold down the Home and Power buttons at the same time and continue to hold them down until the Apple appears (up to 30 seconds). Once the Slide to Unlock screen displays, check to see what Version is showing under Settings>General>About to determine if the update successfully completed.

If that doesn't work, you probably will have to put the device into Recovery mode and then Restore it:

IOS RECOVERY MODE RESTORE

Best of luck,

GB

MY phone just shut down while reading an email. Battery was at more than 80%. Will not restart after multiple hard reset attempts. I've been holding the power and home buttons down together for up to 60 sec at a time both unplugged and while plugged in. I'm traveling internationally and am now totally cut off from communication as I didn't bring my laptop. Not happy.

Me too I have an iphone 6plus . when I wake up my phone doesn't on and I plug it into the charger in couple hours then I try to turn it on but it doesn't do anything with it. I call apple's support hot line but they can't help . I said: I need the phone for my work done but everything are in the phone but the phone's not working it drive me crazy...they make an appointment for me at 4pm but i really need my phone for my job then I drive to Apple in Rancho Cucamonga, ca. I ask them for help...but they didn't not help at all. They don't care your job has been done or not or you lose your customer for that day and you will lose income on that day...They ask me to come back at 4pm . Then I try to get back there to get it done anyway I am disappointed to returned there they let me sit there and wait then later on they said they don't know what's going on in this phone. I said: My phone still under warranty so could you give me another one so i can work with my phone...Apple said: we need the phone to be here for 3-4 days to open them up to see inside then they will replacement for you...*****I lost all informations in this phone , contact , pictures, then now i lost all customer I have worked with....

   My comment is not to use Apple anymore I rather going back to use Samsung more better ..

Well, thank you for that rant, but there is absolutely no point in posting it here. We can do nothing for you. This is a user to user forum.

The needing to wait until your appointment time is not unreasonable, and we are all busy. You have to take your turn in this case.

Not sure what your experience was when you did go to your genius appointment, but if it was as bad as you feel it was, then you should be complaining to Apple. Your perspective of the experience is not the way that Apple would want to do business, so you need to make them aware of what happened. See the Contact Us links at the bottom of the page, and let Apple know about your experience.

Again, the rant has no place on this forum, as it is completely outside the purview of this Support Community.

Cheers,

GB

Thank you!  Very helpful.  Can now cancel my appt at  Apple :-)

My 6S+ had the same issue this morning – it was fully charged and I used it to check my emails. When I tried to read a book during my breakfast, I couldn’t turn it on.  I didn’t have any issues with last two latest iOS upgrades so I’m sure it had nothing to do with iOS upgrades.

I tried everything I could think of to turn my phone on, including the suggestions I found from this forum, but nothing worked.  After an hour or so of frustration, I finally gave up and decided to go back to Apple store since I bought it a little over a month ago. 

Then the funny thing happened – my RX’s Bluetooth made a brief connection to the phone when I started my car (it lost the connection about a second later).  So I checked my phone to see if it’s working and it turned on!!!  And the battery was still 93% charged.  I have no clue what happened but it’s working fine now.

exact same thing happened to me when using pandora and your recommendation worked. thanks!!

I am having the same issue! My iPhone 6 is suddenly turning off, even if there is a good amount of battery charge. If I simply let it down for some moments, and then try to turn it on, it works again. But it is very annoying of having it turned off suddenly, most of the times when you are in the middle of doing something. I've contacted Apple Support twice, but they do not seem eager to help - unless I accept the exchange program, paying for a replaced iPhone, what I consider to be unfair since this is clearly a product failure (not sure if software or hardware, but certainly its Apple's responsibility).

my iPhone 6+ is doing this. (iOS 9.3.1) I went to sleep with it plugged up around 20 percent battery and I wake up to find my screen black and unresponsive. Nothing  working, tried resetting it, connecting to itunes, leaving it on the charger, and all other options have been exhausted. I'm taking it to the Apple Store today so we will see..this is ridiculous on apples part.

I'm having the exact same issue and this will be the second time my phone is having to go into the Apple Store since I bought it in December!!! If they can't do something to fix it tomorrow then I'm asking for a full refund because I need my phone for work purposes and can't keep giving it to apple for days at a time. It wouldn't even be as bad if they got you a temporary replacement. All the booking in to see an Apple Genius and waiting days to even get an appointment is ridiculous.

Rant over - If anyone has any idea other than those already suggested to stop it turning itself off every hour it would be greatly appreciated.

Purchased my iphone 6 new from Verizon in the Fall of 2015. Been running IOS 9.3.1 since it come out without any problems. Have not had any problems with my phone until today. Phone was dead this morning when I woke up. Ended up over sleeping because alarm I had set on my phone did not go off. I ended up holding the power & home button to get the phone turned back on.

The only reason I'm posting is because I read that someone's phone started working again after it seem to connect to BT in their car.

I use BT with my Pebble watch that I just got a few weeks ago. For the first time ever I put the watch on a charger over night in a room on the other side of the house instead of charging it next to my phone like I normally do, so my phone lost BT connection with my Pebble watch overnight well charging in the other room.

So not sure if a lost BT connection over night with my Pebble watch had anything to do with my iphone turning itself off or not, but thought i would mention it.

I'm just going to keep a eye on my iphone 6 for now as it has only shut off on it's own the one time so far. If it happens again then I may reset it as a new phone and see if that helps before I call Apple about warranty as I still have several months until my warranty is up.

I also started using the Apple Smart Battery Case with my Iphone 6 a few weeks ago, but I don't think the case has anything to do with my phone shutting down on it's own.

I baby my phone, it's never been dropped or got wet, but I wonder if my problem with it shutting down last night had anything do to with Blue Tooth.

Hi. I know this is an old thread but there are current replies so I thought I'd add one, as well.

I have the iPhone 6 Plus 64gb purchased in Jan 2015. Obviously out of manufacturer warranty and I do not have Apple Care or any other extended warranty.

Last night, around 8:30 pm, I got in my car, sent a text, then made an attempt to make a phone call (via my car's Bluetooth). The line was ringing and stopped because the phone abruptly shut down. Tried to reset with no luck. Got home, plugged it into the wall charger and still no response from the phone. At approximately 10:30 pm, I got a white screen with the Apple logo and was then able to unlock the phone long enough to send an email. Immediately after I sent the email, I plugged it into a different wall charger (and different outlet) for it to charge overnight. I get up this morning and I have an unresponsive phone once again. I've made several attempts at a hard reset and nothing has worked. Called Verizon technical support...no luck. Called Apple support...they did some troubleshooting (nothing more than hard reset) and then scheduled an appointment for me to take it to the Genius Bar. To say that I examined all efforts, I took it to the Verizon store as well. They tried two chargers and two outlets and no luck there either.

Is it likely a brick device, at this point?