Service iPhone mode. How to enter the DFU mode (recovery mode) and why it is necessary. DFU mode in Apple devices

DFU mode is an option in which you can enable your iPhone in this configuration at which it can interact with iTunes, but it will not be loaded its operating system or bootloader (this is what really distinguishes this mode from the recovery mode). It can be said that the input of the device firmware update.

Why is the DFU mode usually use?

The main reason why people need to go to dFU mode On your mobile, lies in the need to change the firmware on the device. This can happen for various reasons: the need to return the iPhone and its operating system in the previous state or use that are required for jailbreak or unlock SIM. For example, if you installed iPhone OS new versionand then decided that for you preferable the previous one, you need to make a reset new Installation Using the DFU mode.

How to enter the DFU mode in the iPhone?

Connect the iPhone to the computer and run iTunes. Turn off your smartphone (hold the power button at the top of the mobile). Press and hold the power button or SLEEP simultaneously with the Home Exactly 10 seconds, and then release the first. Continue to hold Home while iTunes will not appear about whether your iPhone in recovery mode has been detected.

When you enter the DFU mode, the iPhone screen will be completely black.

Even though the screen becomes dark, this does not mean that the device cannot be synchronized with iTunes or other service (for jailbreak, etc.).

Remember that if you see the iTunes logo, a recovery hint or any message on iPhone screenYou are not in DFU mode. Instead, you started standard mode Recovery. Again, the DFU mode is determined only by the presence in full on the device. If anything else takes place, repeat the steps described above until you go to the specified mode successfully.

Exit DFU mode mobile

Most. simple way Exit DFU mode is HOME and SLEEP / Turning on when connected to iTunes. After that, simply press the power button, and this should restart the device as usual.

For what users are interested in how to translate your gadget to DFU mode?

The most common cause of using the DFU mode is a device jailbreak. Today it is not uncommon among users - buy new iPhone And find a way to make a device from limitations of use outside of one network or abroad. Often this is explained by the fact that people are looking for the cheapest way to buy an iPhone and are not interested in signing a contract with a particular operator for a long time. Naturally, most devices users do not want to overpay for roaming or immediately make the full cost of iPhone to the seller. In other words, the reasons may be much, but they all are reduced to one - the desire to save and get a maximum of recoil at minimal costs.

It should be noted that the above instruction works not only with respect to the iPhone. Similarly, in this mode, you can enter any "apple" device, since the factory settings are identical in them.

Beginners users iphone and iPad often encounter difficulties in the process of flashing iPhone and iOS updates before actual version. This is especially true of the owners of the jailbroken iPhone, the flashing of which from under iOS sometimes causes iTunes errors. In this instruction, we will introduce you, dear readers, with what is DFU mode iPhone, for what it is needed, how to enter the DFU mode and what to do if the iPhone is "stuck" in this mode and does not boot.

What is the DFU mode in the iPhone?

DFU mode (Device Firmware Update) is the device firmware update mode. Refers to emergency modes and is recognized by iTunes when connect iPhone or iPad to a computer using a USB cable as a recovery mode.

It differs from the recovery mode (Recovery mode) in that in this mode, the device does not apply visible signs of life (the control button does not work, there is no image on the display).

In this mode, the iDevis works without loading the shell operating system, therefore, on display iPhone You can not see the pictures and the device does not respond to pressing the POWER and HOME buttons separately.

What is the DFU mode in the iPhone, for example?

The DFU mode is used to restore or update the iPhone firmware (it) in cases where iTunes cannot perform the necessary operation.

In some cases, the DFU mode can correct the system failure in the iPhone, which will allow the device to re-boot in normal mode.

How to enter the iPhone in DFU mode?

DFU mode and in iPhone 5 and in iPhone 4, and in any other mobile apple mobile device (iPhone, iPod Touch. and iPad) starts absolutely the same:

1. Connect the iDeys to the computer (it can be Windows PC or Mac).
2. Or press and hold the button " HOME"And" Power"Within 10 seconds.
3. 10 seconds later release the "Power" button, wherein continue to hold the "Home" button Pressed.
4. Hold the "Home" button As long as the computer does not recognize the iPhone in DFU mode.

The entry process in the DFU. Click to enlarge

Recall that on external features to recognize the DFU-mode in the iPhone will not be possible, in this mode it does not respond to single push buttons and the display does not work.

Well, when the iPhone is working and all the controls work, but it happens that one of the buttons "Home", "Power" or both immediately do not work, what to do? In this case, our instruction "or Power, or both immediately will be useful.

Video "How to enter an iPhone in DFU mode"

How to recognize DFU mode?

DFU In iPhone or iPad, it is possible to recognize only when the device is connected to the computer and only with a USB cable. It is the computer will notify the user about the device firmware update mode. iTunes recognizes the "Device Firmware Update" mode as recovery mode.

Recovery or DFU mode warning when connected to iTunes

So the device looks like in recovery mode or DFU iTunes

How to display iPhone / iPad from DFU mode?

If the computer recognizes the iPhone, for example, in the firmware update mode (it is DFU) in order to output the machine from this mode, you must perform the "cold restart" iPhone.

To do this, simultaneously press and hold down the "POWER" and "HOME" button downstream during approximately 10 seconds. Then briefly press the button enable iPhone (She is Power). A branded logo should appear on the machine screen, which is evidence that the device is loaded in normal mode.

Finally

The DFU mode in the iPhone or any other device running the IOS is extremely useful, it allows you to restore the operating status of the device with any systemic failure, restore the firmware or update iOS to the current version of bypassing the normal mode. If your device refuses to load in normal mode or when you restore / update the firmware from the normal mode, iTunes has occurs. system error It is enough to enter it into the DFU mode and in this mode to recover or update the firmware.

How to enter the iPhone in DFU mode? Many users of the apple products did not even hear about such, in any case, until the device work unconditionally, it is not necessary to restore anything. But, after certain procedures, such as Jelbreak (hacking) - even a new iPhone 7 is able to declare a strike, but an iPhone 5 and is suppressed can "refuse to maintain". Therefore, another choice, in addition to restoring the original firmware, it is sometimes not located. Before you understand how to restore the iPhone - you need to enable the required mode.

After all, it is often "resurrected" iPhone only by including DFU. By the way, Jelbreak himself is also done through it. How exactly all this works on iPhone and what is DFU mode?

Device Firmware Update (DFU) - special regime Recovery that allows you to enter an iPhone to a special state for implementing some operations: creating the necessary sections in file System, start / firmware loader, as well as firmware of additional modules and system sections. You can also use it to restore the password.

So, what is the DFU mode is understandable. And in what cases will you need to enter a smartphone into recovery mode?

• The device refuses to turn on;
• Standard recovery measures do not work;
• The impossibility of recharging;
• The computer does not see an iPhone.

What may be caused similar problems? It may be unsuccessful firmware, hacking or aggressive app from Cydia - no matter. It is much more important to know how to fix it.

It is worth noting that you can enter the iOS device into the DFA mode only by iTunes programs - Sometimes without her I-devices, including the iPhone 7, even sneeze.

How to enter your iPhone in DFU mode?

It is important to warn: procedure recovery iPhone. In this mode - destroys everything that was stored on the device, no matter how sad it sounds. Therefore, it is better before the start of all manipulations through DFU make a copy of everything that is on the smartphone in cloud storage or right on the computer.

And a small rule: the connection should be made only through original cable (preferably) to the rear USB ports. Use front entrances and adapters undesirable. This is especially true of the iPhone 7. The newer the model is the more whims.

The procedure describing how to enter DFU mode is not easy, but with the fifth attempt everything will definitely. But, especially gifted users may immediately cope with the task.

So, to enter DFU:

1. You need to connect an iPhone to a computer - you need already enabled iTunes.
2. Next, you need to hold hOME buttons And POWER, and keep 10 seconds, after letting the POWER, but continue to hold Home.

Did not help and the iPhone is not included in the DFU mode? How decided? After all, even by entering the DFU mode, the iPhone screen remains completely black, and it is possible to define it only looking at iTunes messages. If everything is done correctly, then "tuna" will give such a message:

But if such an image appeared, it means that Recovery Mode mode was enabled:

It is worth emphasizing fundamental difference in the iPhone between DFU and Recovery Mode.so that inexperienced users stopped confused them:

1. Recovery Mode operates within the operating system, is considered to be more "soft" and does not require it to turn on iTunes.
2. DFU runs around the operating system - at the hardware level. Therefore, it is more efficient.

How to enable the first mode here will not be considered - so if the iPhuns and USB cable icon appeared on the iPhone screen, you can safely begin the procedure first.

A more complex method to translate the iPhone to the DFU recovery mode:

1. First you need to completely turn off the iPhone.
2. Now the POWER button is clamped for three seconds, then the Home button is pressed, it is held together for 10 seconds, after, just as in the first case, Power is released, and Home continues to hold.

Again failure? However, it is strange ... then for particularly lucky users there is a IREB program that tells how to translate the iPhone to the right mode.

The lightweight utility will control the iPhone entering the necessary DFU mode - you just need to choose suitable deviceThe list of which starts from the iPhone 3G and ends on the iPhone 4S (which does not interfere with using the iPhone 5S, iPhone 6S and iPhone 7), and then only follow the instructions that appear on the screen.

Again it did not work? It is possible that the Home button refuses to obey. In this case, the RedSn0W program will help. You need to run iTunes, connect iPhone and open this utility. Then it will only be left to click on the Pwned DFU button so that Aytyuns passes on a successful entry into the recovery mode.

Suppose it turned out, and all the necessary procedures are made. How to bring the device to your previous condition?

How to bring iPhone from DFU?

Everything is simple - to make the excretion you need to hold the HOME and POWER buttons for 10 seconds, thereby reloading the device.

A small nuance, before displaying the iPhone from a special state: Do not, without performing the actions described above, to immediately turn off the cord from the PC.

Otherwise, there may be another problem here - the capricious gadget does not wish to leave the DFU mode. Why is it going on and what to do?

This happens because of the banal failure in the operation of the system, even if it is iPhone 7. Sometimes to output the smartphone from the ill-fated mode helps such programs like Tinyumbrella, RedSn0W, RecBoot and Ireb. How to return the smartphone to a normal state by RedSn0W?

You just need to go back to the previous mode with this program, after which try to exit DFU by rebooting.

Everything is useless and again it is not clear how to get out of the recovery mode? Then you can try to redject the battery. True, for this you have to shoot rear cover Using dumping and suction cups. Sometimes the task is not easy ... By the way, in some cases, after a successful opening can help the replacement of the battery.

Last measure

If the dfu mode fails - then the output one. it full flashing - basically helps.