IPHONE 3G STUCK IN DFU MODE! HELP!

If you connect it to your computer while in DFU mode it should be recognized by iTunes and should automatically restore. If it doesn't we need more information to help you.

What kind of computer?
What operating system?
What version of iTunes?
What kind of USB ports on the computer (1.1 or 2.0)?
Are you using a USB hub?
What other USB devices do you have connected?
What error message are you getting on the computer (if any)?

Alternatively, you can go to http://www.apple.com/support and search for tech notes that might help.

Have you tried a reset? WHy were you putting it in DFU Mode anyway?

We still need the rest of the information:

Is iTunes installed?
What version of iTunes?
What kind of USB ports on the computer (1.1 or 2.0)?
Are you using a USB hub?
What other USB devices do you have connected?

Also, launch Task Manager (CTRL SHIFTESC). Click on the Processes tab, then the label at the top of the Image Name column to sort the list. Then look down the list for AppleMobileDeviceService.exe. Is it there?

So you got stuck in the middle of your jailbreaking process and you need help? Might try over at the forums for the Dev team, where you learned how to void your warranty, I mean brick your iPhone, I mean hack your iPhone.

FIRST look for AppleMobileDeviceService.exe as I described. If it is running try plugging into a USB port on the BACK of the computer rather than the front. Also unplug any other USB devices except for keyboard and mouse.

How did it get into DFU mode? Was it spontaneous, or did you do it intentionally?

If AppleMobileDeviceService.exe is NOT listed in the Task Manager go to the Control Panel and open Administrative Tools, then Services. Find Apple Mobile Device and double click it. It should not be running (because you did not see it in the task list). Click the Start button. Wait for it to start and try connecting the iPhone again. If it isn't in the Services screen you must completely uninstall iTunes, then reinstall it from a freshly downloaded copy from http://www.apple.com/itunes. The uninstall instructions are here: http://support.apple.com/kb/HT1925?viewlocale=en_US

Not if it is synced with iTunes. If it was purchased on the phone and never synced to back it up you will lose it.

If it still doesn't restore, try this: Hold the HOME button and plug into the computer while holding. Continue holding until something happens - about 1 minute. This may kick-start the process of restoring.

This may sound a silly question, but did you have iTunes running while in DFU mode? With iTunes open, plug the phone in and hold the power and home buttons until the recovery screen shows. You can restore the phone from there. If you've been using Winpwn, I'd check elsewhere for an answer.

A few other people have experienced something similar. A guy at iPhone linux suggested this fix, which apparently helped some:

UPDATE/FIX:
Put it into DFU mode.
Hold down Sleep and Home
count from 1001 to 1010 out loud
release the Sleep button
repeat the count.
release home button.
iphone is now back into DFU mode.
iTunes should now recognise the phone and ask if you want to reinstall the firmware.


Hope this helps/works for you! :]