"My iPhone 5S stuck in DFU mode, it can neither restoring or booting up. What should I do?"
It is a common phenomenon that your iPhone stuck in DFU mode after iOS 10/9 update. Namely, it can neither turn on nor restore and the common practice to exit iPhone DFU mode is to hold down the "Power" and "Home" button till the Apple logo appears on the screen and release both button afterwards. But you'd better backup iPhone in DFU mode since such forcible way of booting iPhone would cause heavy data loss, including photos, contacts, text messages, note and more.
Unfortunately, those who search for ways to backup iPhone in DFU mode only find that it's just IMPOSSIBLE to backup stuck iPhone. But don't lose heart! You can completely turn to an alternative that guarantees to exit DFU mode without data loss instead.
The freeware ReiBoot is highly recommended here. It enables you to freely and softly get iPhone (iPhone SE/6s/6s Plus/6 Plus/6/5s/5c/5/4S) out of DFU mode without restore or without any data loss. What's more, it's extremely user friendly that all you need is just 3 steps as below.
This way is extremely useful when the power button of your iPhone doesn't work as ReiBoot supports getting iPhone out of DFU mode without power button.
But what if you've no idea of ReiBoot and just take the forcible way of exiting DFU mode on iPhone SE/6s/6s Plus/6/6Plus/5s/5c/5/4S? IMHO, you must suffer from great data loss on iPhone. Thankfully, there's a powerful iPhone data recovery software that allows you to recover lost photos, contacts, notes, text messages and other document files directly from iPhone without backup. Follow the tutorial below to give it a shot!