How to Hard Restart and DFU Mode on iPhone 7 This article can tell you how to reset a n iPhone 7 and iPhone 7 Plus. Maybe sometimes you need solve some problems by activating device firmware upgrade (DFU). Apple has changed the reset process with the iPhone 7 series, and with the devices now making their way into users' hands, it's a good time to let everyone know how to do when things go wrong. You need read below now.
The hard reset basically force-reboots your iPhone, which is useful if the device is freezing, throwing up errors, or has stopped responding completely. DFU mode can restore an iPhone if a reset or standard Recovery Mode doesn't solve the problem you're experiencing.