How can I get my iPhone 3GS out of DFU mode?

umair July 26, 2011
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I installed 4.3 in my 3GS by cooking it with snowbreeze

I installed it by taking it in DFU mode. After the completion of installing by iTunes, it doesn’t restart. I use ibooty to boot it and it’s started well. However, when I restart it again, same thing happens, just started with ibooty, but this time it doesn’t start and stuck there now.

I’m not able to get out of DFU mode. I tried again and again with different tools, but nothing happens iTunes says that an iPhone found in recovery mode, but iTunes also fails to restore it

What do I have to do? If I open it from market and re-insert the battery, then will I get it out or not?

  1. Yousufmunir
    October 12, 2011 at 6:39 pm

    I had same problem...but i restored to 4.3.5 via itunes...then i was able to use it...

  2. Tina
    July 31, 2011 at 9:04 pm


    did James' suggestion work for you? Please let us know in case you need more help!

  3. James Bruce
    July 27, 2011 at 8:33 am

    Hi umair. I would try deleting the iOS upgrade download cache from your itunes install, though I cant find a link to help you out there - on mac its in the user/library folder somewhere, and may contain a corrupted image. 

    Second, edit your hosts file to remove any entries that jailbreaking has added, as these prevent itunes from verifying the restore with apple. 

    Once you've done that, just allow itunes to restore the image as normal and everythign should go smoothly.