What is dfu mode iphone. iPhone DFU mode: full firmware recovery
DFU mode will allow you to restore the iOS operating system on your iPhone smartphone or iPad tablet.
Greetings, dear users of mobile gadgets from Apple - iPhone or iPad. Today I will tell you how to enable DFU mode on your iPhone smartphone or iPad tablet computer. You may need to enable this mode on your gadget if your device refuses to load the iOS operating system; in general, DFU mode will help you if your iPhone or iPad simply does not work.
DFU mode will allow you to quickly and safely restore your iOS operating system to a working state.
Before you start enabling DFU mode on your iPhone or iPad, you must connect it to a personal computer on which the latest version of iTunes is installed. If you don’t have the program, then download and install it right now, you can do this on this page - http://www.apple.com/itunes/
So, let's finish the introduction and move on directly to launching the DFU mode. Don't be afraid, nothing bad will happen to your device. Many people are afraid to launch DFU mode, simply because they are afraid: “What if I mess it up?” Don't be afraid, absolutely nothing will happen to your iPhone or iPad.
Entering DFU mode
So, let's get to the fun part.:
- Take your iPhone or iPad and hold down two buttons at the same time: the “Home” button located on the front side of the device and the gadget on/off button located on the top of the Apple device;
- Keep these buttons pressed for ten seconds;
- Next, without releasing the Home button, you need to release the On/Off button;
- Hold the Home button until a message appears on the screen of your personal computer to which your iPhone or iPad is connected that the device is in recovery mode.
The above instructions are universal for launching DFU mode like on an iPhone smartphone, and on the iPad tablet computer.
Important nuances
If, when performing the above operations, an image of the iTunes program logo appeared on the screen of your iPhone smartphone or iPad tablet computer, then for some reason you were unable to enter DFU mode, so I recommend doing the above operation again until until you succeed.
Recovery mode (DFU) is a special iOS operating mode used to update or restore a device via iTunes. Basically, it is only needed in cases where the device could not be updated over the air or is malfunctioning due to incorrect installation of the OTA update.
How to enter DFU mode on iPhone X:
Step 1: First of all, iTunes on your PC needs to be updated to the latest version available. If the program is updated and open, close it;Step 2: Connect your iPhone X to your computer using the Lightning cable that comes with your smartphone. Open iTunes;
Step 3: Simultaneously press and hold the Side button and the volume down key for 10 seconds;
Step 4: Release the Side button while holding down the Volume Down key for another 15 seconds;
Step 5: iTunes should display a message indicating that the iPhone has been detected in recovery mode. The smartphone screen must remain turned off.
Ready! You are now in DFU mode and can use iTunes on your PC to restore or update your iPhone software.
How to understand that the iPhone has not switched to DFU mode:
- The Apple logo lights up on the screen;
- The iTunes logo lights up on the screen. This means that the iPhone is in Recovery Mode, which is different from DFU mode;
- iTunes doesn't see the connected iPhone.
Beginning iPhone and iPad users often encounter difficulties in the process of flashing the iPhone and updating iOS to the latest version. This is especially true for owners of jailbroken iPhones, whose flashing from iOS sometimes causes iTunes errors. In this manual we will introduce you, dear readers, to what DFU mode iPhone, what is it for, how to enter DFU mode and what to do if the iPhone is “stuck” in this mode and will not boot.
What is DFU mode on iPhone?
DFU mode (Device Firmware Update) is a device firmware update mode. Refers to emergency modes and is recognized by iTunes when connecting an iPhone or iPad to a computer using a USB cable as a recovery mode.
It differs from Recovery Mode in that in this mode the device does not show visible signs of life (the control buttons do not work, there is no image on the display).
In this mode, the iDevice operates without loading the operating system shell, so no picture is visible on the iPhone display and the device does not react in any way to pressing the “Power” and “Home” buttons separately.
Why do you need DFU mode in iPhone, for example?
DFU mode is used to restore or update iPhone firmware (aka iOS) in cases where standard iTunes tools cannot perform the required operation.
In some cases, DFU mode can fix a system crash in your iPhone, allowing the device to reboot normally.
How to put iPhone into DFU mode?
The DFU mode in both the iPhone 5 and the iPhone 4, and in any other mobile device from Apple (iPhone, iPod Touch and iPad) is launched exactly the same:
- Connect your iDevice to your computer (it can be a Windows PC or Mac).
- or press and hold the “ Home" And " Power"for 10 seconds.
- After 10 seconds release the "Power" button, wherein keep holding the Home button pressed.
- Hold down the Home button until the computer recognizes the iPhone in DFU mode.
DFU login process. Click to enlarge
Let us remind you that it will not be possible to recognize the DFU mode in an iPhone by external signs; in this mode, it does not respond to single button presses and the display does not work.
It’s good when the iPhone is working and all the controls work, but it also happens that one of the “Home”, “Power” buttons or both do not work at once, what should I do? In this case, our instructions “or Power, or both at once” will be useful to you.
Video “How to enter iPhone into DFU mode”
How to recognize DFU mode?
DFU in an iPhone or iPad can only be recognized when the device is connected to a computer and only using a USB cable. It is the computer that will notify the user about the device firmware update mode. iTunes recognizes "Device Firmware Update" mode as recovery mode.
Recovery mode or DFU warning when connected to iTunes
This is what the device looks like in recovery mode or DFU iTunes
How to get iPhone/iPad out of DFU mode?
If the computer recognizes the iPhone, for example, in firmware update mode (aka DFU), in order to get the device out of this mode, you need to perform a “cold restart” of the iPhone.
To do this, simultaneously press and hold down the “Power” and “Home” buttons for about 10 seconds. Then briefly press the iPhone's power button (aka Power). A company logo should appear on the device’s screen, which is evidence that the device boots in normal mode.
Finally
DFU mode in an iPhone or any other device running iOS is extremely useful; it allows you to restore the device to its working state in the event of any system failure, restore the firmware or update iOS to the latest version, bypassing the normal mode. If your device refuses to boot in normal mode or when restoring/updating the firmware from normal mode using iTunes, a system error occurs, just enter it into DFU mode and perform a firmware recovery or update in this mode.
No matter how reliable the iPhone 6 is, it is not immune to various types of failures. In some cases, the phone stops responding to any user actions: the screen does not light up, the buttons are inactive. In order to get it out of this state, the developers provided the dfu mode. The abbreviation dfu stands for: device firmware update, that is, updating device firmware.
This mode is an effective tool that helps you successfully recover your iPhone from many emergency conditions. They occur especially often after iOS updates, when the user tries to implement them on their device.
When activated, dfu acts as a bootloader, since the operating system, for one reason or another, does not do this. During the recovery process in this mode, the system is completely removed and reinstalled. All previous settings and personal data are erased, and the latest current version of iOS is downloaded to the phone. Then personal information can be restored, provided that you have backup copies of it.
How to initiate dfu
This is a very important and necessary function, let's take a closer look at how to enter the iPhone into dfu mode.
First, connect the switched-off device with a USB cable (preferably a branded one) to the authorized computer with which it was previously paired (since you will not be able to enter confirmation from a non-working iPhone to connect to a new device).
Secondly, simultaneously press and hold the “Home” and “Power” buttons pressed for ten seconds.
Thirdly, release the “Power” key and hold down the “Home” key until a characteristic iTunes notification appears on the computer monitor that the device is under dfu mode. (It is recommended to update iTunes to the latest version before this to avoid errors)
At the same time, the phone itself does not reflect the successful completion of this mode. His screen is still disabled and cannot display any system messages. The computer will carry out all further processes itself. It must be connected to the Internet, as you will have to download the latest version of iOS from the Internet. This may take more than one hour until all file system partitions are successfully installed on the phone.
If you cannot switch your iPhone to dfu mode the first time, try repeating the entire procedure a little later using the original USB cable.
As you can see, putting your iPhone into DFU mode is not at all difficult. Let's now find out how to get him out of it.
How to disable already running recovery mode on iPhone 6
If, after starting dfu mode, you change your mind about restoring the system so as not to lose all existing data, then you can easily remove your iPhone from it. To do this, it is enough to perform a regular reboot, i.e. Press the Power and Home keys and hold for ten seconds. After turning on the power, the phone will start loading into normal mode (provided that it was operational before). It makes sense, as a training, to carry out this process before problems arise. So that later you can be prepared and not make mistakes.
In conclusion, we will say that you should not neglect the use of this mode. It will help restore your phone in cases of system failures, or when the current update has gone wrong, and also if you have forgotten your password. If you have a backup, you will copy all your data again, and your iPhone 6 will work like a Swiss watch.
DFU (Device Firmware Upgrade) mode differs from the usual recovery mode in that it bypasses the operating system and reflashes it directly. As a result of flashing in DFU mode, you will get the latest version of iOS installed on your iDevice.
This is the most reliable method to reflash and can be recommended to anyone who experiences errors in iTunes during a normal recovery. Often similar errors occur on those iPads that have undergone the Jailbreak procedure, but the user still wants to reflash the iPad (traces of jailbreak, in this case, as with a normal recovery, will disappear).
Flashing via DFU mode is possible on iPad, iPhone and iPod Touch of any model. Below I will write about the iPad, but on the iPhone and iPod Touch everything is done in the same way. Before flashing in DFU mode, I recommend charging the device for at least 15-20 minutes, just in case. So that during flashing it does not happen that the device turns off due to an uncharged battery.
How to login DFU mode on iPad(DFU Mode iPad)
1. Close iTunes on your computer.
2. Connect your iPad to your computer.
3. Turn off the iPad completely by holding the Power button for a long time and moving the “Turn off” slider
4. Press the Home and Power buttons for exactly 10 seconds.
5. Release the Power button, but continue to hold Home until the computer displays the new USB device (approximately 10-15 seconds). This may not happen - in this case, hold the Home button for 20-30 seconds just in case.
6. iPad screen in DFU Mode will be black, don't expect it to turn on.
8. Now there are two options:
a) To flash the firmware, hold down the Shift button (in OS X - “option”) and click on Restore iPad/iPod/iPhone (Restore). In the file selection window, specify the firmware file that you want to use (it, of course, must have been downloaded before). The current firmware file can be downloaded from here.
b) You can simply click the “Restore iPad” button. In this case, iTunes will simply tell you:
And after clicking the “Restore and Update” button, it will download the latest firmware and begin restoring it.
Option A is preferable to B, since you will have firmware on your computer in case of any errors. In option B, the firmware will be downloaded again each time.
That's it - iPad firmware in DFU mode has begun. In option B, it will start when iTunes downloads the firmware (depending on the speed of your Internet connection). You can track your download progress in the upper right corner of iTunes - there is a button there that opens a submenu with downloads.
An apple will appear on the screen of your iOS device, the device will reboot several times and eventually, after about 10 minutes, you will see the welcome window of the iOS operating system. You can proceed to setting up the system.
Popular questions and answers on the topic “flashing iPad in DFU mode”:
Question: Which flashing method is better?
Question: How to get iPad out of DFU mode?
Answer: hold down the Home and Power buttons and hold them until signs of life appear on the iPad. But it happens that the device does not want to exit DFU mode. In this case, there is only one thing left to do - flash it via DFU according to the instructions above. In this case, you will receive a full-fledged working device with the latest firmware.
Question: What to do if DFU mode does not turn on?
Answer: As I wrote above, the DFU mode does not show itself on the screen. That is, if the screen is black, and iTunes sees the device and wants to restore it, this means that you have already enabled DFU mode.
Question: Is it possible to put an iPad into DFU mode without working buttons (for example, the Home button is broken)?
Answer: No, DFU mode will not be available. Repair the buttons in the service, and then restore them. In any case, DFU is a last resort. Most likely, you will be able to flash the firmware using a regular restore in iTunes.
If you have any questions or problems arise, feel free to write them in the comments.