Iphone reboot loop. help plz

I have in iphone 3gs in a reboot loop and need it fixed. i have a chromebook and cannot get itunes that i know of. any help is appreciated. i've also tried the volume up button thing and it didnt work. thanks

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).
(EDIT)
I successfully restored my iphone, and it worked GREAT! until i removed it from the cradle, and my screen jumped straight to apple logo, descending into the bottomless pit of reboot cycles.
Message was edited by: detri

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Msi z77 mpower. higher than 8gb = reboot loop. help.

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Quote from: Froggy Gremlin on 19-November-12, 07:07:05
Sounds like maybe the DRAM V. is being set too low by the BIOS. Raise it to 1.55-1.575v's and see if that resolves it.
using your #1 image, if i try to add stick in dimm1&3 or dimm2&4 it would reboot loop. If I tried 1&4 or dimm2&3 it would reboot loop.
If i tried dimm3&4 it would reboot loop.
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Need help plz my iphone is stuck in a reboot loop

my iphone is stuck in a reboot loop i cant get it to stop itunes dose not detect
my iphone so i can restore it i don't know what to do plz help

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).
(EDIT)
I successfully restored my iphone, and it worked GREAT! until i removed it from the cradle, and my screen jumped straight to apple logo, descending into the bottomless pit of reboot cycles.
Message was edited by: detri

IPhone stuck in reboot loop - too many apps installed?

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).
However, sometime in November the iPhone crashed, and I was already thinking that it would now last a few days until I could use it again. But somehow it was done within 15 minutes. Without any error or reboot loop. The last two months I haven't had any problems with this until the battery was empty three days ago.
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.
However, I've read about some possible solutions to this problem (without restoring - which would solve the problem only temporarily anyway):
Hard-resetting the iPhone until the screen is completely black, then wait a few minutes, then turn the device on. It's possible that this has to be repeated several times, but for the user who posted this it resolved the issue.
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
Since I upgraded my iPhone to iOS 7, I suffer from random crashes/resets, where my iPhone reboots and enters a reboot loop (Apple logo, black screen, reboot, Apple logo, black screen, reboot, etc) that I can only exit by restoring the device (resetting doesn't help).
Some more information
a) The device: iPhone 4, 32 GB, has never been jailbroken, and has never shown any similar issues before.
b) The crashes/reboots: I haven't been able yet to find a pattern when and why they happen. I had reboots when searching for an app, when pluging in the wall charger, when entering the access code, and even when doing nothing at all (iPhone in my pocket). The only constant is the reboot loop after the crash.
c) What I tried so far: I restored the device several times, using normal restore (with the iTunes logo) and DFU mode (black screen). After that, I recovered from a recent backup (takes some hours), and everything is ok again - for some hours, until the next crash and reboot loop. I also set up the device as a new phone, and there it seems stable, so I exclude a hardware issue. I tried quite a few of the advices that I found when googling for reboot loops: reset all settings (this led to an another immediate crash and reboot loop), disable app background refresh, etc.
I've been using this device for my daily business. With the current instability (and the couple of hours it takes to bring it back to life again), it became more or less useless. I wish I could downgrade again (I know that I can't). My assumption is that either iOS 7, or some incompatible app or some corrupt setting is causing this situation. But I don't know how to proceed to isolate and eliminate the issue. I really would like to avoid setting up everything from scratch again.
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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:
In my case, the problem definitely had something to do with the springboard process (an iOS system 'app' that manages the iOS homescreens) and the watchdog process (another iOS system 'app' that monitors certain things on your phone and that can initiate a restart when it thinks the phone is frozen). In the folder '/Users/<your account>/Library/Logs/CrashReporter/MobileDevice/<your phone>' I could see what caused my crashes; they were all 'stack+SpringBoard' and the reason in these crash log files was 'Watchdog timeout'.
The following two forum posts helped me:
https://discussions.apple.com/thread/1676330?start=30&tstart=0
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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thanks,
but your link is broken and i read everything i could find about error 9 and restart looping
i tried all of the suggestions made in those articles - this is why a posted this post and wrote about:
tried to restore it i got itunes error 9 !!!
i tried with 3 diffrent cables and on mac osx 10.8.2 and win 7

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Now suddenly 2 days ago, my iphone keeps going into reboot loop everytime and when i get it out then around 9hours later, it comes again..
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Have you got the latest 1.1.4 software installed, along with the latest version of iTunes?
Have an iPhone or iPod touch? Enter Mac611.com in Safari on it for 'mobile Mac support.'
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Iphone reboot loop. help plz

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