Begin holding the Home button without releasing the Sleep/Power button for 10 seconds.Turn off the device by holding the Sleep/Wake or Power button and swiping it off.
So, here’s a step by step tutorial on how to do it. What is DFU mode used for?ĭFU mode can be used for multiple things including upgrading firmware, downgrading firmware, and even rebooting your tethered jailbroken device. That’s the main difference between DFU mode and recovery mode.
DFU stands for Device Firmware Upgrade and you’ll be sure to see this term again and again in the jailbreaking community.ĭFU mode is a state that allows you to put your iPhone to interface with iTunes, but does not load iOS operating system or boot loader. Similarly, in this mode, you can enter any "apple" device, because the factory settings in them are identical.If you want to get into jailbreaking (or already have), one of the things you’ll want to know how to do is to put your device into DFU mode. It should be noted that the above instructionworks not only in relation to an iPhone. In other words, there can be many reasons, but they all boil down to one thing - the desire to save money and get the most out of the return with minimal costs.
Naturally, most of the users of the device do not want to overpay for roaming or immediately make the full cost of the iPhone to the seller. Often this is due to the fact that people are looking for the cheapest way to purchase an iPhone and are not interested in signing an agreement with any particular operator for a long time.
Today, it's not uncommon among users to buy a new iPhone and find a way to free the device from restrictions of use outside of one network or abroad. The most common reason for usingDFU mode is a jailbreak device. Why are users interested in how to convert their gadget to DFU mode? After that, just press the power button, and this should reboot the device, as usual. The easiest way to get out of DFU modeis holding Home and Sleep / Enable when connecting to iTunes. If something else occurs, repeat the above steps until you are in the specified mode successfully. Again, the DFU-mode is determined only by the presence of a completely black screen on the device. Instead, you start the standard recovery mode. Remember that if you see the iTunes logo,a prompt to restore or any message on the iPhone screen, you are not in DFU mode. When you enter DFU mode, the iPhone screen will be completely black.Įven though the screen becomes dark, it does not mean that the device can not be synchronized with iTunes or other service (for jailbreaking, etc.). Continue to hold Home until iTunes displays a message stating that your iPhone was in recovery mode.
Press and hold the power button or Sleep simultaneously with Home for exactly 10 seconds, and then release the first one. Turn off the smartphone (hold the power button on the top of the mobile). For example, if you installed the iPhone OS of the new version, and then decided that you prefer the previous one, you need to reset the new installation using DFU mode.Ĭonnect your iPhone to your computer and start iTunes.
This can happen for various reasons: the need to return the iPhone and its operating system to its previous state or use the custom firmware that is required for jailbreak or unlock SIM. The main reason why people needtransition to DFU mode on their mobile, is the need to change the firmware on the device.
You can say that entering it means updating the firmware of the device. DFU mode is an option where you canEnable your iPhone in a configuration where it can interact with iTunes, but it will not boot up its operating system or bootloader (this is what really differentiates this mode from the recovery mode).