It’s a mode on your phone that allows it to have iOS installed over the 
computer.

I think it stands for disfunctional unit, but don’t quote me on that.  LOL.

Victor

From: brian albriton 
Sent: Tuesday, September 20, 2016 5:29 PM
To: viphone@googlegroups.com 
Subject: Re: iPhone 7: How to force restart, enter Recovery Mode, and enter DFU 
mode

Hi, again. My message bounced back to me earlier today. What is DFU mode? I'm 
simply not familiar with what that is. All the best, Brian

On Sep 19, 2016, at 3:49 PM, Mary Otten <motte...@gmail.com> wrote:


  iPhone 7: How to force restart, enter Recovery Mode, and enter DFU mode

  9to5Mac  /  Jeff Benjamin



  Since the Home button on iPhone 7 isn’t a mechanical button anymore, and is 
instead a capacitive solid-state button controlled by software, it’s no 
surprise that performing hard resets, entering recovery, and entering into DFU 
mode no longer works the same way on iPhone 7.

  The good news is that you’ll only need to adopt a new button combination to 
perform each of these tasks. Have a look at our full video walkthrough, and 
we’ll show you how. 

  How to force restart iPhone 7
  To force restart (hard reset) the iPhone 7, press and hold the Sleep/Wake 
button + Volume Down button for 10 seconds. Because of the Home button change, 
it’s been replaced by the Volume Down button during the process.

  The side-effect to this method is that the Volume HUD appears on screen each 
time you wish to force restart the iPhone 7. Not a big deal, but not as 
“clean-looking” as in the past.

  How to get into Recovery Mode on iPhone 7
  Step 1: Connect your iPhone 7 to your Mac or PC with a Lightning to USB cable.

  Step 2: Press and hold the Sleep/Wake button and the Volume Down button until 
the screen turns off. Continue holding the Sleep/Wake button + Volume Down 
button, even after you see the Apple logo appear.

  Step 4: Release the Sleep/Wake + Volume Down button once you see the Connect 
to iTunes message appear on the iPhone 7’s screen.

  Step 5: Launch iTunes, and you should see a message stating that “There is a 
problem with the iPhone that requires it to be updated or restored.”

  Video tutorial

  Subscribe to our YouTube channel for more iPhone 7 videos

  How to get into DFU mode on iPhone 7
  Getting into DFU mode, as you can probably guess, also requires a change.

  Step 1: Connect your iPhone 7 to your Mac or PC with a Lightning to USB cable.

  Step 2: Press and hold the Sleep/Wake button and the Volume Down button 
simultaneously for 10 seconds.

  Step 3: Release the Sleep/Wake button while continuing to hold the Volume 
Down button for 10 additional seconds. Unlike Recovery Mode, which presents a 
Connect to iTunes message on the screen, the iPhone 7’s screen will remain 
blank while in DFU mode.

  Step 4: Launch iTunes, and you should see a message stating that “iTunes has 
detected an iPhone in recovery mode. You must restore this iPhone before it can 
be used with iTunes.”



  The Volume Down button takes on an additional role on iPhone 7

  How to exit Recovery mode or DFU mode on iPhone 7
  As long as there are no issues with your iPhone, getting out of Recovery Mode 
or DFU Mode is easy.

  Step 1: Press and hold the Sleep/Wake button and the Volume Down button 
simultaneously until you see the Apple logo appear (or the connect to iTunes 
message disappear when in Recovery Mode). You iPhone should boot back to the 
Lock screen.

  Although there is no longer a mechanical Home button on the latest iPhone, 
it’s still relatively easy to force restart, enter Recovery Mode, and enter DFU 
mode by strategically wielding the Volume Down button + Sleep/Wake button 
combination.

  To learn more about the new iPhone 7, be sure to watch our Top iPhone 7 
features video, embedded below:


  Guides
  iPhone 7

  Apple's iPhone 7 and 7 Plus were announced on 7th September 2016

  View THe Guide


  Original Article: 
http://9to5mac.com/2016/09/18/iphone-7-how-to-force-restart-recovery-dfu-mode


  Sent from my iPhone
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