If you had any problems with the software on the iPad, or if you had to erase all the information from the device, you know what updating and recovery is.
In the same case, if suddenly you have not encountered one or the other, and also do not know what DFU mode is (iPad or iPhone - there is no difference), this article will be useful to you. In it, we will consider how to work with this mode, what it is. Do not be alarmed by the terminology and, at first glance, complex abbreviations - everything is very easy and simple. A person who has minimal experience with a computer and tablet can handle this.
General view
First, let’s clarify what this DFU mode is. iPad, as you know, is running an iOS operating system. When you work with it, you use a touch screen that responds to touch. This is exactly how the device control procedure is implemented - the graphical interface accepts commands sent by the user, after which the OS processes them and responds properly.
Device Firmware Update ( this abbreviation is decoded in exactly this way) - firmware update mode. When DFU mode is turned on, iPad 2 does not load the graphical shell. Simply put, the device does not show signs of life at all, since its screen is empty. You see only a black background, so it may seem that the tablet is turned off.
In fact, the device functions normally, you can simply connect to it only through a USB cable connected to the computer. The latter, in turn, must have iTunes installed. As soon as you connect the iPad that has switched to DFU mode, a window will immediately appear on the screen, indicating that such a device is recognized.
What function does the DFU perform?
DFU mode is an excellent feature that allows you to control the tablet in any situation, regardless of the error that occurred. Let's just say this: this is an emergency mode in case the gadget software fails and you can’t control the device using classical methods (pressing the Home button or touching the screen).
By going into DFU mode, the iPad can be put into firmware update mode. This means that a more recent version of the operating system will be installed on it. The error that led to the initial loss of control of the device will be fixed.
How to activate?
To put the iPad into DFU mode, you need to perform the simplest combination using the Home and Power keys. Before that, of course, you need to connect the device to the PC with a USB cable. Then you need to hold down the keys for about 10 seconds. Then release the Power button, and hold the Home button (Home) until the message appears on the computer screen that the iPad was recognized in DFU mode.
If you see it, you know - you managed to enter the iPad in DFU mode, and now you can proceed with updating or restoring the firmware. The difference between them is that in the case of an update, you can simply install a more recent version of iOS on your gadget, if available.
Speaking of recovery, it should be noted, firstly, the same update to the latest version of the operating system; and secondly, deleting all the information that was on the device. You should be more careful with this, because, as you know, it will not be possible to return it at the end of this procedure.
How to get out?
When you carry out the flashing action, and your device receives a new version of iOS without errors and crashes, you need to exit DFU mode. This is done simply: again hold both keys (Power and Home) for 10-12 seconds, then release and press Power once. This will provoke a reboot of the device, and in this case it will turn on and enter the normal operation mode. The fact that the iPad came out of DFU, you will understand by the Apple logo that appears on the screen.
In general, this mode can be useful for many reasons. It is not known exactly how many errors your device may produce. Yes, and it does not make sense to consider them, since their number is probably close to infinity. But you know that they can deal with them by updating the operating system, which is easily carried out in safe DFU mode .
If you possess such knowledge, you will not need to contact the service center with a request to fix the software error. You can do this even at home. This, obviously, was Apple’s goal - to make a product so simple and convenient that even a layman at home could fix a systemic problem that arose in it. As you can see, they did it.