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 My 3Gs keeps shutting off on its own! Help!
Unread 10-29-2011, 05:44 PM   #1
LIL_WHOOPER_
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My 3Gs keeps shutting off on its own! Help!

my iphone 3gs keeps shutting off and I dont know why! can someone help me with suggestions? its running ios 4.3.1 and it has the 6:15 baseband and it has been fine forever. But recently its just shutting off randomly and to turn it on I have to jump start it by plugging it in to a power source. Then I can take it off and it works fine until it shuts off again. Any suggestions would be highly appreciated
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Unread 10-29-2011, 06:25 PM   #2
mb23
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Had a 2g that did the same thing and it
turned out to be a bad battery
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Unread 10-29-2011, 06:26 PM   #3
nicholasa
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Sorry to say but it sounds like your battery may be going down, I have an iPod touch 2g that can't hold a charge. But it works fine when it's plugged into the wall plug. You can order kits to do it yourself, I ordered the battery kit and got it now I just need a soldering iron to actually do it.
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Unread 10-29-2011, 08:45 PM   #4
ztensa
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I have to agree with everyone; however, with my case, it turned out not only the battery but the charging port too. My phone used to reboot itself or respring itself constantly until one day, the battery was draining and when I went to plug it into a computer or an outlet to charge, it just wouldn't.

I thought that I might as well wait until the phone was completey drained and then try to charge it again...all I received was an empty battery sign. So I swapped the battery out and tried it again...still same empty battery sign. Took a big risk (turned out not so big risk at all) and changed the charging port. (I bought all these off eBay but it's a hit and miss on the parts sometimes). I replaced the port and voila! Phone charged again and now I'm able to use it again

Hope this helps.
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Unread 10-29-2011, 09:26 PM   #5
[AMM]Viper
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Quote:
Originally Posted by LIL_WHOOPER_ View Post
my iphone 3gs keeps shutting off and I dont know why! can someone help me with suggestions? its running ios 4.3.1 and it has the 6:15 baseband and it has been fine forever. But recently its just shutting off randomly and to turn it on I have to jump start it by plugging it in to a power source. Then I can take it off and it works fine until it shuts off again. Any suggestions would be highly appreciated
My friends at school had this same problem with is 3Gs
He put a new battery in and it worked just fine after.
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Unread 10-30-2011, 12:53 AM   #6
mrg9999
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Battery change is quite hard if you've never done, I probably never attempt it again. My 3GS was like a new phone after. I was reborn, and watched the sunrise.
If I helped you, please randomly thank someone else

No really, hit that thanks button..


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Unread 10-30-2011, 04:25 AM   #7
D3xus
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Probably a bad battery, or a Cydia app that you installed. I know that disabling mobile substrate addons will cause your device to randomly reboot every here and there.
Take it to an apple store, but make sure you restore it first if it's jailbroken.

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Unread 10-31-2011, 01:45 AM   #8
adham.gebaly
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its definitely a battery issue, i had the same issue for a while and it didn't go away until i changed the battery 20 days ago. now the phone is working just fine.
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Unread 11-06-2011, 08:45 PM   #9
swift7788
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ITS THE BATTERY I'M VERY SURE FO THAT !!!
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Unread 11-07-2011, 04:22 PM   #10
Speedx69
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mine was doing the same thing, with anything ios 4 and above .. i replaced the mobilewatchdog file in ios4 to fix it but ios5 does not have that file .. i got a new 616-435 battery put it in and whammm problem fixed ..
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Unread 11-07-2011, 04:59 PM   #11
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my 3gs started have signal probles like it could be antenna but it is also randomly rebooting

even non jailbroken this happens

it will be searching for a signal and freez up then reboot

what you guys think battery?
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Unread 11-11-2011, 08:09 PM   #12
tom.muris
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Hmm in a way i have the same issue.

My iPhone 3GS (new bootrom) shuts down at any random battery %, even 100% after charging all night, i can't reboot it unless i plug it in, after that it'll work again for 10-15 mins depending on what i do.

I tried to fully drain and fully charge it to calibrate, but when it's completely drained and i plug it in, it'll charge starting at 40%'ish never from 0%.

My firmware is 4.3.3, jailbroken with jailbreakme. Not much installed from Cydia besides Installous, SBSettings and MyWi.

I've had this problem for about 2 months now, i tried to replace the mobilewatchdog file, but that isn't working for me either.

restored a few times without jailbreaking it, same result.

Opened it up to check if all was properly connected (even though i never dropped it..) and it was all fine.

I have bought an iPhone 4s, but as you know, there's no untethered jailbreak out yet, so i like to keep my 3GS around for certain apps. Even when it becomes available i would like to pass the 3GS on to someone else, so if there's anything else i could try (besides buying new parts) i'd like to give it a shot
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Unread 11-11-2011, 08:34 PM   #13
Dog Lover Man
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replace the battery sir..i've done it 3x on my repair 3gs my first option is charging pin but after i changes it still the same always rebooting but when i changes the battery works 100%..i think that's the only solution to your problem


at your service
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Unread 11-18-2011, 04:58 PM   #14
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so i changed the battery and that fixed the signal issue

no more drops and it finds the carrier always

problem now is it just got a popup sayin restore needed

it rebooted to activation screen

sounds like a different problem now!
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Unread 11-05-2012, 04:13 PM   #15
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i have the same problem and i replaced the battery and it still turns off...... can someone help me
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