How do you exit DFU mode without iTunes? DFU (Device Firmware Upgrade) mode is not the same as restore mode. DFU mode bypasses the current OS installed and allows you to upgrade or downgrade your OS. If you are getting errors trying to restore in iTunes, DFU mode is very likely for you.
How do you get out of DFU mode safely? Here are simple methods.
Method 1: Use Physical Buttons
To exit iPhone DFU Mode, hold down the "Power" and "Home" buttons, and then release these buttons once the Apple logo appears on the screen. Wait for the iPhone to boot up. Repeat the above process if it does not.
Method 2: The Easiest Way - Reiboot
You can use Any iOS System Repair (ReiBoot) to exit DFU mode by entering and exiting recovery mode. Just One click - Connect your Devices to Computer. And then you can quickly exit Recovery Mode in seconds. No Data loss. Totally free iPhone tool.