DFU Mode. Is it possible in anyway to enter this mode without a computer?

Question

Asaf Moraz Author

Level 1

5 points

DFU Mode. Is it possible in anyway to enter this mode without a computer?

Hello.

Me and my friend have a big argument about DFU mode.

* He calims that it is possible to enter DFU mode without a computer at all.

* I claim that entering DFU mode without a computer or any other external hardware is impossible at all.

* I also claim that it is possible with a software only, without phisicaly touching the iDevice using iTunes or any other software.

I also explained him that DFU is "Device Firmware Upgrade" and it must get connected with a PC or MAC to get into this mode.

Can someone professionaly explain us the correct answer so that we can finaly solve this issue?

Thanks in advance,

Asaf Moraz.

iPhone 4, iOS 5

Posted on Oct 24, 2011 8:50 AM

Reply

Answer 1

brad805

Level 5

7,397 points

Oct 24, 2011 3:19 PM in response to Asaf Moraz

You can easily enter DFU Mode with the iPhone connected with the USB cable to the Wall Charger. So technically you don't need a computer to enter DFU Mode. But this still is external hardware as you suggested. The Device must be touched to enter DFU Mode. It also requires a functioning Home Button and Power Button. If these are faulty, then the Logic Board contacts of the Home and Power Buttons must be activated physically, not by software.

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Answer 2

Asaf Moraz Author

Level 1

5 points

Oct 24, 2011 3:26 PM in response to brad805

No problems, no need to be sorry! i've just checked it and you are definetaly right! you helped me to figure out this issue. well, i guess you must have third party external device to enter DFU mode. you must get connected to the dock with a machine, computer or to the wall charger.

Thanks a lot...

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Answer 3

KiltedTim

Level 10

223,944 points

Oct 24, 2011 9:45 AM in response to Asaf Moraz

Efen if it's possible, it wouldn't do you any good, because without a PC and iTunes, you can't restore the firmware.

The argument is pointless. It's like arguing about how many angels can stand on the head of a pin.

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Answer 4

Asaf Moraz Author

Level 1

5 points

Oct 24, 2011 2:01 PM in response to KiltedTim

Well, thanks for your answer but i must be sure about this issue.

You see, it's a bet with a friend of mine and i must find out the truth about it...

Hope someone can help me about this issue.

Thanks and sorry for pushing about it...

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Answer 5

KiltedTim

Level 10

223,944 points

Oct 24, 2011 2:37 PM in response to Asaf Moraz

I think it's going to be hard to prove, since the only way you can know it's in recovery mode and not just hosed and needing to be reactivated is to plug it into a computer with iTunes and looking for the message that iTunes has detected an iPhone in Recovery Mode...

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