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Discuss [Issue] iPhone requires DFU flash every 2 days? at the General - Hackint0sh.org; Hey - Summary: Every 2-3 days my iphone becomes unusable and requires a DFU re-flash. ...
  1. #1
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    Exclamation [Issue] iPhone requires DFU flash every 2 days?

    Hey -

    Summary:
    Every 2-3 days my iphone becomes unusable and requires a DFU re-flash. What can I do to resolve this?

    Details:
    I've got an originally 8gb 1.1.3 refurb (from Apple.com) that I originally jailbreaked/unlocked with Ziphone (so it downgraded my BL to 3.9). It worked great for 2 weeks, then started crashing. I eventually figured out that it was due to my boot partition filling up. I used BossTools to relocated the fonts/ringtones/apps, and it worked fine for another couple days. Then it started crashing again. Every app would crash after a few seconds. Springboard would crash. Prefs, notes, text, iphysics...everything.

    This time I couldn't find a solution to the problem, so I tried upgrading to 1.1.4. The flash failed about 5 times, so I then downgraded iTunes to 7.5, tried DFU mode, tried on a different computer... I'd get error 2, 6, 1015,1014, you name it, i got it. Eventually the process got further along (it'd die during the "restoring iphone" progress indicator). After several hours of attempted flashes, I got a flash to complete. Phew! i thought...Another couple days go by. Same thing - becomes unstable.

    After another several hours of attempted flashes, I finally get one to work.
    Another 2-3 days, repeat. The process I use to flash now is this: open ibrickr, start downgrade process (puts the phone in dfu mode), close ibrickr, open itunes, shift+restore to some firmware. Most of the time it doesn't work, but sometimes it does.

    After going through the flash process a couple times, I figure I should try something else, so I start downgrading the baseband to different versions to see if the phone lasts longer. Nope, same thing. Then pwnage comes out with bootneuter and I can finally upgrade my BL back to 4.6, so I do that. 2-3 days later, same thing.

    A few notes:
    The iPhone updater.log files have all sorts of errors, but many times I've seen checksum errors reporting that the software that was loaded failed the checksum comparison.
    I configured the phone for dual booting at one point in an attempt to figure out if the flash disk was going bad. This proved false.
    I think the issue is that something gets corrupted in the RAM or CPU and the OS just goes to crap after that.
    I've checked the Crashreporter logs, but those don't appear to have any pattern for failing memory addresses...

    Anybody have any ideas on what else I can do to troubleshoot this?

    Thanks!
    Last edited by intscout; 04-12-2008 at 01:29 AM. Reason: title update



  2. #2
    J to the T. Shaken, not Stirred Array thecompkid's Avatar

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    Try redownloading the firmware IPSW, that often solves the checksum problems (at least in my experiences). If the IPSW isn't the source of the constant checksum bounce, then it is, unfortunately, a serious problem with your phone.

    You said you used bootneuter. Did you actually pwn your phone or did you just install it manually? You might want to try pwning your phone if you didn't as that has the capability of overriding the checksum.

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    thecompkid - Thanks for the suggestions.

    Funny thing about the checksum's is that I'll use a particular ipsw and it'll fail a few times, then on the 5th try it will work. And I've downloaded all the ipsw's a couple times each, so I don't believe it is an issue with those being corrupted.

    I didn't pwn the phone (don't have a mac handy...), but I might try that when the windows version comes out. But due to the random corruption after a couple days of use, I don't think pwning will even help.

    Anybody else have a problem like this? It's probably the most aggravating, time consuming issue I've run into in recent years (and I work in I.T. ...). Mostly because there isn't quite enough resources (people,tools, and documentation) out for the iPhone yet...

  4. #4
    J to the T. Shaken, not Stirred Array thecompkid's Avatar

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    I figured that you had already tried re-dling the ipsw, but simple fixes are always satisfying when they work out .

    The PWNAGE thing could actually work for you as minor things have a habit of snowballing usually, and it would make more sense if you had one large problem than two concurrent ones logically.

 

 

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