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Thread: Help! iPhone 3G with a blank screen and computer doesn't detect it!

  1. #1
    Unhappy Help! iPhone 3G with a blank screen and computer doesn't detect it!
    So I've screwed up big time. I was able to restore my iPhone to 4.0.1, but couldn't get into DFU mode to jailbreak and unlock with redsn0w. I found a guide online that showed how to edit the IPSW file and that would force the iPhone into DFU, so I decided to try that. So I edited an IPSW for 3.1.3 and restored my iPhone with it. Here is the guide I used:

    1. Make a copy of a fresh IPSW file
    2. Open the IPSW as a zip folder and browse to /firmware/all_Flash/all_flash.xxxxx.production/
    3. Delete LLB.*****.RELEASE.img3
    4. Rename the applelogo.xxx.img3 file to the deleted LLB.*****.RELEASE.img3 file name
    5. Save the file and restore the IPSW to your device using iTunes
    6. iTunes Restore will error out and your device will be in DFU Mode


    So after that, my computer still recognized my iPhone, but took forever trying to install new drivers for it. iTunes recognized it as being in DFU mode, and so I tried to jailbreak with redsn0w. I used a clean IPSW of 3.1.3 and got through everything in redsn0w, but redsn0w was hung on the booting up process. I ended up falling asleep while waiting, and my computer is set to automatically go into standby after two hours.

    So when I woke up this morning, my iPhone was still plugged into the computer, still had a blank screen, and none of my computers could detect anything when I plugged the iPhone in with any of my cables.

    Please please please help me. I just got this thing three days ago...

  2. #2
    Superbad Modder-ator Simon's Avatar
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    Unplug it and leave it overnight. Hopefully this will drain the battery completely. Then try to plug it in to see if the computer sees it. If not leave it unplugged longer. Basically you need the battery to completely drain.

    I am guessing you have a broken power or home button right?

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    SanavaBeach (03-10-2011)

  4. #3
    My home button isn't broken, but it's screwy. I replaced the battery, switched the front with another iPhone and was able to successfully jailbreak it.

    As soon as the battery was replaced, the computer detected the iPhone. Replacing the front and successfully entering DFU mode just showed that my home button was the limiting factor from before. It's jailbroken now and unlocked.

  5. #4

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    SanavaBeach (03-10-2011)

  7. #5
    Except now I'm having some serious battery draining problems. I'm guessing I should just install SAM and use it to deactivate the phone, and then reactivate it? Not sure what I need to do...

  8. #6
    Superbad Modder-ator Simon's Avatar
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    If you hactivated it then ya, use SAM to fix battery issues.

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    SanavaBeach (03-10-2011)

  10. #7
    It was activated with an AT&T SIM, then unlocked so I can use my T-Mobile SIM.

  11. #8
    iPhone? More like MyPhone iphonogasm's Avatar
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    Quote Originally Posted by x98car View Post
    If you hactivated it then ya, use SAM to fix battery issues.
    What about bad batteries issues if your not hacktivated. Haha mine sucks

    Any ideas

    Cheers

  12. #9
    Superbad Modder-ator Simon's Avatar
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    Then something else or the battery itself is causing the battery drain.

  13. #10
    I had a few apps still running push notifications, and it was set on 3G. I just disabled all push notifications and turned off 3G.

    My stats:
    Usage: 2 hours, 23 minutes
    Standby: 4 hours, 35 minutes
    Battery: 50%

    I'm brand new to iPhone...is normal for an iPhone with a brand new battery and running push notifications and still in 3G? What stats should I be seeing?

  14. #11
    Superbad Modder-ator Simon's Avatar
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    I'm not even sure to be honest. I do charge my iPhone every night though.

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    SanavaBeach (03-10-2011)

  16. #12
    Thanks for all your help recently. I couldn't have saved my iPhone if it wasn't for you and your quick responses.

    My battery isn't draining badly anymore. I had wifi on too, so I think having all those things on was killing the battery.

  17. #13

  18. #14
    Quote Originally Posted by Simon View Post
    Unplug it and leave it overnight. Hopefully this will drain the battery completely. Then try to plug it in to see if the computer sees it. If not leave it unplugged longer. Basically you need the battery to completely drain.

    I am guessing you have a broken power or home button right?

    Will leaving my iphone in dfu mode drain the battery and exit dfu mode?

    Will leaving my iphone in dfu mode over night drain the battery and exit dfu mode?
    Last edited by iphone3gdfu; 02-04-2013 at 08:04 PM.

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