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Old Jan 17, 2011, 04:29 AM   #1
MoodyM
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iPhone 4 constantly rebooting, won't stay on long enough to restore

My iPhone 4 (4.1 firmware) has started rebooting constantly, never getting past the Apple logo.

Sometimes the "connect to iTunes" logo comes up, and plugging it into the PC tells me iTunes has found an iPhone in Recovery mode, but I can't get it to stay on long enough to Restore, it reboots all the time.

I thought about trying DFU mode, but I don't know how to get it into DFU mode when it's constantly rebooting.

Help appreciated.
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Old Jan 17, 2011, 04:38 AM   #2
polishmacuser
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hold the sleep/wake button and home button for 10 seconds then release the sleep/wake button but keep holding the home button until itunes recognizes its in "recovery mode"(dfu). The screen wont show anything on the iphone, but iTunes will recognize it.
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Old Jan 17, 2011, 05:29 AM   #3
MoodyM
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Thanks, yeah, I knew that was how to get it into DFU mode, but I couldn't, because during the "hold for 10 seconds", the phone would reboot.

I eventually got it into DFU mode (I knew because Windows said it found new hardware "Apple iPhone (DFU mode)", and the screen was black).

During the 15 minutes it took in iTunes to download the 4.2.1 update, the phone didn't reboot at all, so I though "great".

I did the Restore, and everything went as it should during a Restore (white progress bar on iPhone, iTunes saying the phone had been successfully restored at the end), but once it was done the iPhone rebooted and went back into the constant rebooting problem.

Any more ideas?
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Old Jan 17, 2011, 05:33 AM   #4
vachargerfan
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Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_2_1 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8C148 Safari/6533.18.5)

Sounds like you have a hardware problem. You will need to get apple to look at it
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Old Jan 17, 2011, 05:35 AM   #5
polishmacuser
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ya if you restored it and its still causing this, theres something else at hand here. You can try restoring again?
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Old Jan 17, 2011, 08:39 AM   #6
iceterminal
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Sorry to hear about your problem. But if a DFU won't fix it then.....
Sounds like a trip to the Apple store is due.
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Old Jan 17, 2011, 09:53 AM   #7
aneftp
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OP, you are leaving out some key details:

1. Are you running a jailbroken firmware?
2. Are you trying to restore to 4.1 without shsh backup?

If you are using the word DFU...all signs are pointing towards you are running a jailbroken 4.1 version of iOS. It could be corrupted and unless you backed it up, you will need to restore to 4.2.1 and lose your jailbreak.
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Old Jan 17, 2011, 10:27 AM   #8
vachargerfan
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Quote:
Originally Posted by aneftp View Post
OP, you are leaving out some key details:

1. Are you running a jailbroken firmware?
2. Are you trying to restore to 4.1 without shsh backup?

If you are using the word DFU...all signs are pointing towards you are running a jailbroken 4.1 version of iOS. It could be corrupted and unless you backed it up, you will need to restore to 4.2.1 and lose your jailbreak.
His other post says he downloaded 4.2.1 and restored it. He has a hardware problem with the phone. Should be able to get it swapped out at the Apple store
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