How to restore iPhone 5S?

Question

iPhone

In general, the essence is this, I had a jailback on iOS8.4, since something didn’t suit me, I decided to roll back to the factory ones.
Well, then the problems started: I put the device into recovery mode, iTunes started, offered to update or restore, I chose to restore, because there was a backup copy before the jailbreak, the firmware was loaded, the preparation of the iPhone for the firmware began, then the iPhone turns off while iTunes is waiting for the iPhone, but the recovery line does not appear on the iPhone screen and there is no apple either, only a minimal backlight. What should I do? and could it be because of a non-original cable