IPhone 4S strange rebooting loop

On Thursday, my iPhone 4S, working fine at college as I listened to my music, then rebooted itself.
It continues in this loop for 3 hours, then took a trip to the apple shop in Glasgow for them to have a look at it.
They fixed it, then an hour or so later it rebooted again, only this time it begins to load up (apple logo in White then black screen) but a blue line will appear through the middle of it, or the other one is where the apple logo will distort in a grey colour then reboot again.
I took it to the apple shop on Friday, explained the problem to one of the "geniuses" and was given the impression he wasn't interested. He didn't look at me, say anything more than 3 words at a time and said to come back next week.
A. It unprofessional?
Unhappy with the attitude I was given, I went in again about twenty minutes later to a much nicer guy, who sat and spoke with me about the possible problems and to go back on Wednesday.
Believe it could possibly be the hardware of the phone, and if so, is it really right of me to pay for a a problem that I'm not at fault for?

Restore the iOS software using iTunes as a new phone, without using a backup.  If the problem persists, there is a hardware problem.
iTunes: Restoring iOS software
Believe it could possibly be the hardware of the phone, and if so, is it really right of me to pay for a a problem that I'm not at fault for?
Not clear what you mean by "at fault for."  If the phone is still under warranty, it will be covered, if no evidence of abuse.  If the warranty has expired, you'll have to pay for replacement, regardless of cause.
Note that if this phone was EVER jailbroken, what you described is not unusual, won't be fixed by restoring and the warranty is void.

Similar Messages

  • Iphone 4s strange reboot loop

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    clicking restore and update downloads and extracts software.
    software is verified and iphone is prepared to be restored.
    the apple logo is seen as well as the little loading circle under the apple logo
    the loading bar is seen....
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    device has never been jailborken and is factory unlocked.
    suggestions please. thanks

    http://support.apple.com/kb/ts3694
    RobertHall wrote:
    device has never been jailborken and is factory unlocked.
    Please define "factory unlocked". Apple does not use that term at all. The phone is either unlocked (as originally sold by Apple or by an authorized source in a country where all iPhones are sold unlocked) or it was unlocked by the carrier it was originally locked to.  Anything else is a hack.

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    Try:
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    - If not successful and you can't fully turn the iOS device fully off, let the battery fully drain. After charging for an least an hour try the above again.
    - Try on another computer                            
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    Hi guys!
    Starting some months ago, I've had nothing but problems with my iPhone. However, I've been dealing with most of these or even solved them.
    But now I'm stuck on a reboot loop for a few days and don't know what to do.
    When did it start? I think it was in May when I first got panic.plist, ResetCounter and SpringBoard-CrashLogs under "Diagnostics and Usage". Following this, everytime I rebooted my phone or the battery was empty, it could take some more minutes than normal for my iPhone to boot. This loading time increased and increased, in October it once took more than two days for my iPhone to reboot. I now have really thousands of those ErrorLogs. The Apple support on the phone couldn't help me either. Additionally, the phone performed some cruel changes I can't explain: Once the language was changed, once the photo gallery had to be restored (the iPhone did that on its own).
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    Since then, I have had the iPhone plugged in so the battery doesn't get empty and it's stuck on the bright Apple logo. After about 210 seconds the logo gets dark, then the screen is completely black and it's starting the same procedure again. Sometimes I get the vibration, sometimes the loading circle (white wheel of death!), but everytime it just starts over again.
    I am pretty sure this problem appears because I have more than 1300 apps installed (yes, this is a very huge number, but I remember Steve Jobs saying that, with the folders in iOS 4, it would be possible to have a few thousand apps installed), 4000+ photos, and so on. I am pretty sure it's not a hardware, but a software problem. In detail, it's about the SpringBoard. The iPhone 4S only has 512MB RAM, so it's hard for it to load 1300+ app icons into its memory (which it has to because the SpringBoard has to run without any lags). Only in some cases it's able to boot that up, but I have absolutely no idea which cases these are and why it has run well for the last two months, but beginning with the new year stopped to work.
    Furthermore, the panic.plist entries all say that the problem is a watchdog timeout. Apple's iOS seems to allow the devices only to take up to two minutes (always around 120 seconds in the CrashLogs) to boot up, then probably another 120 seconds to launch the SpringBoard process (which explains the watchdog timeouts in the SpringBoard-CrashLogs).
    I will not restore the iPhone because I unfortunately haven't backed up for a long time and there have been many data changes since the last backup.
    So altogether, I tried to collect all the information I know here, but that's really not enough. Apple unlikely wants to help me, the phone support was really nice, but even asked his superior, who couldn't help either.
    My questions to you folks now are: Do you have any more information regarding panic.plist's, watchdog timeouts or reboot loops?
    What would your advice be? Any chance to get onto my data and back it up? Or is waiting the best solution?
    Would it be better to try several hard resets, or let the battery run empty and start the whole process again, or just let the phone plugged in so it tries to reboot on and on until it's hopefully successful sometime?
    And: Would it maybe increase the loading time if I would take the SIM card out of the iPhone, so the chance to have an successful try would be higher?
    Note: I am still using iOS 5.1.1 because I am completely sure that I'd have to buy an iPhone 5 to run 1300+ apps on iOS 6.

    Okay, some more information about this.
    Apparently there is a 'watchdog' that listens whether the iPhone's software responds or not. If it doesn't, it forces a restart, and also creates a panic.plist entry (under Diagnostics). Unfortunately the responding time is only 120 seconds. The problem I have now is the so called 'Application Map'. To ensure a smooth browsing through the different screen filled with apps, this map is regenerated everytime the user installs a new app or deletes one. Because I have more than 1300 apps installed, generating this Application Map usually takes more than two minutes. I can only hope that sometime in the next days my iPhone will be able to do this in less than 120 seconds (like it has done that several times before).
    I still can't explain why everything had been working great during the last two months. I have probably installed some new apps, but also deleted other ones, so the number of total apps didn't really increase heavily.
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    For all the (in this case lucky) guys with a jailbreak: SSH into the iPhone, then temporarily move the watchdog located under /System/Library/SystemConfiguration/mobilewatchdog.bundle to a different folder, the iPhone will boot up after a few minutes. Then just move the watchdog back. It's a shame that apparently jailbreak users can resolve this issue, while normal users can't.
    I also want to note that this problem has been appearing since iOS 2, which came out more than four years ago. It would be really no big deal for Apple developers to change the 120 seconds to e.g. 300 or even more. I've found hundreds of threads, not only here, where users complain about exactly the same issue. I don't have any hope that an Apple employee will ever read this, but if so, please keep that in mind. I don't understand why Apple has done nothing to solve this issue.
    However, if you have any more ideas, please reply here. If there's anyone around here who has managed to successfully install more than 1300 apps on his iPhone (or iPod touch), please post that.

  • Random iPhone crashes and reboot loop after iOS 7 upgrade

    Hi all
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    All,
    First of all, sorry for my half-finished post above. While typing, I was interrupted, and by reflex I hit CMD-S. Unfortunately, the stupid interface of Apple's support website interpreted that as a submit command. I tried to complete my text with the update function, but when finally hitting the submit button, I got an error message, and all my updated text was gone... No way to bring it back, and also no way to delete the half-baked posting. Quite frustrating.
    Now, to complete what I started above:
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    The following two forum posts helped me:
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    https://discussions.apple.com/message/20794982#20794982
    I'm quite sure that my issues had to do with the 'application map' that is mentioned in the above posts. So far, Ive been thinking that it was just too large (as in the case of Andi1996 [second link above]), but jmbladen's observation seems not to support this. So, the absolute number might not the source of the problem, but I still assume that something went wrong with my application map during the upgrade from iOS6 to iOS7. I remember having stability problems before, as soon as all my 10 home screens were full of apps and newly downloaded apps would generate additional pages (only visible via iTunes). Considering that there are some fundamental changes to how we can organize apps within folders in iOS 7, it can well be that the springboard process just wasn't able to cope with my application map correctly within the 120 seconds before the watchdog process restarts the phone. My massive cleanup action must have fixed this somehow.
    @jmbladen: I'm only using iCloud for the 'find my phone' functionality, so all the backup & recovery was done via iTunes from my local harddisk. And there was no temporal pattern for my crashes before. You might suffer from the same symptoms, but probably not because of the same cause.
    My advice for anyone affected by random crashes and a reboot loop is to check out the directory with the CrashReporter logs mentioned above to find out what app or process causes the crash. If it's the springboard and watchdog problem, then you should try to clean up your home screens (from iTunes). Maybe the absolute number of apps is not that important, but make sure that you reduce the number of screens. And then sync and backup before you start using the phone again. In my case it helped.
    Hope this helps someone else too.
    P.S. Once you know the right keywords to search for, you find forum postings back to 2008 / iOS 2 describing exactly the same problem. This reboot loop is a very nasty issue, and it is hard to understand that Apple still hasn't been able to address this, or at least provide some better help on how to get out of it again.

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    I am experiencing the same problem, and i have attempted NO jailbreak or other iphone hacked software. My screen will slowly fade to white, and then go into an endless reboot cycle, or just glow bright white til the battery dies. I have tried restoring with itunes via recovery, and i receive error (2003).
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    Message was edited by: detri

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    Message was edited by: detri

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    Then See Here  >  http://support.apple.com/kb/HT1808
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