iPhone iPhone 6S reboots on it's own overnight

Discussion in 'iOS 9' started by gslrider, Mar 31, 2016.

  1. gslrider macrumors 6502

    gslrider

    Joined:
    Nov 4, 2005
    #1
    This is an issue that's actually been happening for me since the 5S. But notice more, and happens more frequently since getting the 6S. Intermittently, overnight, my phone would reboot on it's own. I know this because whenever I go into my phone for the first time the next day, I have to re-enter my code manually (I have finger print recognition on). I have seen my phone reboot on it's own during the day, but that's only happened twice with this new phone. The rest have been overnight. At least 5 times since upgrading to the 6S. Can't recall how many times on my 5S.

    I finally came across a tip in my search to what may be causing this. The tip suggests I go to Settings -> Privacy -> Diagnostics & Usage -> Diagnostic & Usage Data to see activities in or around the time I suspected it to reboot on it's own. And to look for something that pops up consistently. Turns out, what I see 8 in a row (3 of which has the dates I recall my phone rebooting on it's own overnight), is CoreTime-2016-xx-xx-xxxxxx.ips.synced (eg. CoreTime-2016-03-30-200234.ips.synced. This one happened last night).

    What is the "CoreTime ips synced" thing? What is it's purpose? Is it required? How do I prevent it from coming up/rebooting my phone? I'm absolutely certain that updating my iOS will not fix this issue. Why? Because I've updated my phone twice already, and reset it twice since purchasing it in January, and since day one of purchasing it, the random reboots were already happening. I'm thinking it's not the phone, but the iOS. Like I said, this has been happening since my 5S running iOS 8. This CoreTime is the most obvious suspect. Another potential one, but doesn't show up as much, is JetsamEven-2016-xx-xx-xxxxxx.ips.
     
  2. rovolisgiorgos macrumors newbie

    rovolisgiorgos

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  3. asv56kx3088 macrumors 6502

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    Jun 24, 2013
  4. gslrider thread starter macrumors 6502

    gslrider

    Joined:
    Nov 4, 2005
    #4
    I had turned it off, when I initially looked into this issue in January. But when my phone kept rebooting, I turned it back on (for daylight savings time).
    --- Post Merged, Mar 31, 2016 ---
    Yes. But only one shows up. Date 3-23-16.
     
  5. nightstalkerz macrumors 6502

    Joined:
    May 9, 2013
    #5
    Are you using night shift?

    Every time I use it, my phone reboots every night as well.
     
  6. gslrider thread starter macrumors 6502

    gslrider

    Joined:
    Nov 4, 2005
    #6
    I haven't updated to 9.3 yet. And because this has been an on going thing since my 5S running iOS 8, I'm absolutely certain, updating to 9.3 will not fix it. I've also heard people having issues after updating to 9.3, which is why I'm not jumping on it just yet.
     
  7. minimo3 macrumors regular

    Joined:
    Oct 18, 2010
    #7
    It's a "feature". My 5s and now 6s reboot about once a week or so in the middle of the night. I believe it started with iOS 9.0. No change with 9.3.1. In fact mine just rebooted last night. Pretty troublesome since our Corp policy requires us to change a long passcode every 3 months. I couldn't remember my latest one that I changed a week ago.
     
  8. dyt1983 macrumors 65816

    Joined:
    May 6, 2014
    Location:
    USA USA USA
    #8
    Are you being sarcastic? Because after the phone reboots until I sign in, it no longer connects to my WiFi with all that entails... no WiFi calling, no backing up, no syncing, no text message forwarding, no phone calls on my Mac... etc. Disabling a bunch of features doesn't sound like a good "feature".
     
  9. Suckfest 9001 macrumors 6502a

    Suckfest 9001

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    May 31, 2015
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    Canada
    #9
    na bro its a feature. apple is known for that. like the bending feature in iphone 6 that every1 thought was a design fault? the phone was just adjusting to your pocket, thats all

    features, bro
     
  10. gslrider thread starter macrumors 6502

    gslrider

    Joined:
    Nov 4, 2005
    #10
    Lol. It's a "feature" that only benefits Apple, for whatever they need it for. "Privacy"? As long as it's only Apple accessing your phone without your permission I guess. This has been going on for me since 5S running iOS 8.x.x.
    --- Post Merged, Apr 11, 2016 ---
    Lol. Now I know you're being sarcastic. Bendgate is not a "feature". It was a flaw in the design of the iPhone 6. Apple used lighter, less sturdy material for the casing. It didn't happen to all iPhone 6, but enough for it to be a concern. So much of a concern, that Apple changed the material used for the case with a stronger aluminum alloy for the 6S.
     
  11. macfacts macrumors 68000

    macfacts

    Joined:
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    Cybertron
    #11
    Sounds like the problem isn't that the iPhone does random reboots but is that the iPhone does not reconnect to the previously connected WiFi when it reboots without entering pin first. Supposedly it is because the data, like WiFi login info, on the iPhone is still encrypted.

    But Apple already has your wifi login info in icloud backups, so why not send that info over mobile data connection so it can connect to wifi. Apple already sends secure info like email over mobile data connection while the iphone is locked, why not wifi passwords. It just works?
     
  12. tvbi macrumors member

    Joined:
    Jul 14, 2004
    #12
    Turn off iCloud backup. My phone haven't restarted since.
     
  13. Damolee macrumors 6502

    Joined:
    Nov 20, 2012
    #13
    Found the cause of mine. Having too many browser tabs open. It was mentioned in the diag.
     
  14. Makale.Helvetia macrumors 6502a

    Makale.Helvetia

    Joined:
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    İSTANBUL - TÜRKİYE
    #14
    Do you leave the device on charging at midnight?

    If you have SystemMemoryReset diagnostic logs. That may be the issue.
     
  15. SMIDG3T Suspended

    SMIDG3T

    Joined:
    Apr 29, 2012
    Location:
    England
    #15
    Yeah, that's fine, turn that off, it's not important at all...
     
  16. max2 macrumors 68000

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    May 31, 2015
  17. TitsLegendary macrumors 6502

    Joined:
    Jun 12, 2013
    #17
    I've got a 6s on 9.0.2 that is jail broken and it reboots on its own probably 5 nights a week. I don't have iCloud backup turned on and it seems to happen most when plugged in and charging. I've kind of given up trying to figure it out as I guessed it had something to do with the jailbreak.
     
  18. max2 macrumors 68000

    Joined:
    May 31, 2015
    #18
    I am not jailbroken.
     
  19. wakinghour macrumors regular

    Joined:
    Jul 16, 2012
    #19
    Restore your iPhone as new, then restore from backup on iTunes. Do not restore from iCloud, because there is a known bug with iCloud backups over the air.

    This sounds totally ridiculous, but it's what Apple told me and it worked.
     
  20. tvbi macrumors member

    Joined:
    Jul 14, 2004
    #20
    Mine used to restart randomly at night before I turn off iCloud backup. Haven't restart since.
     
  21. gslrider thread starter macrumors 6502

    gslrider

    Joined:
    Nov 4, 2005
    #21
    lol. I love how companies tell people different things. I talked to Apple Care, and went to a Genius Bar, and they told me that this is "normal". iOS automatically does a reboot when memory is running low. Which they do find odd for me, because I always quit every app before I plug-in to charge for the night. There may also be one or two apps that are causing "memory crashes" (hence the reboots). It doesn't happen all the time, but seems to be pretty consistent with every 3-4 weeks it will reboot at once or twice. They also told me I should reboot my phone every couple of weeks. To purge memory and cache. It is after all, a computer, in your hand. So it's susceptible to all issues any other computer runs into. But then again, Apple has always been reliable for me, until the last few years. Now it feeling more and more like Windows to me.

    I also don't believe your tip will help. I've done the reset and restore as new enough times (more pain, doesn't fix anything), and I don't use iCloud on my iPhone. So no iCloud backups or syncing. Except for Contacts. Trust me, I've tried every tips and troubleshooting. Both from Apple, and forums. In my experience, it's the iOS and the hardware not working as they should. And there will always be bad batches of phones. They will work, but not as well as they should. My personal take, I think it's all the bloat ware and bells and whistles that are messing things up. Something is giving to have all of it. Apple and the iPhone have a history of this.

    My phone runs fine otherwise. So I'm just living with it. Apple. Better the devil I know. lol
     
  22. Sleaka J macrumors regular

    Sleaka J

    Joined:
    Mar 5, 2015
    #22
    This seems relevant:

    http://forums.macrumors.com/threads...ew-passcode-requirement-for-touch-id.1973297/

    I thought the same thing as you at first (that my phone was rebooting overnight, cause the same thing was happening with my phone, but not as often), but I figured out that open apps weren't being purged from memory the next day. They were exactly as I left them the night before (a reboot would purge them). So then I thought it might have just been the springboard reloading, but today we found out that Apple added this in iOS9.

    TLDR: Since iOS9 it turns out if the phone hasn't been unlocked in 8 hours, it'll force you to use your passcode.
     
  23. C DM macrumors Westmere

    Joined:
    Oct 17, 2011
    #23
    It's not just 8 hours, it's if it hasn't been unlocked in 8 hours after at least 6 days have passed since the passcode was used to unlock the phone. So at most this would apply about once a week. The messaging is for this is also different and doesn't mention it being needed because the device was restarted (while it mentions restart in the case that the device was actually restarted).
     
  24. Sleaka J macrumors regular

    Sleaka J

    Joined:
    Mar 5, 2015
    #24
    Oh, that makes sense. That sounds more like what I've been experiencing.
     
  25. Abazigal macrumors 604

    Abazigal

    Joined:
    Jul 18, 2011
    Location:
    Singapore
    #25
    So Apple expects that its users sleep less than 8 hours a day?
     

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