Soft resets are usually conducted in an attempt to fix malfunctioning applications or because they're required for software installation.
Soft reset contrasts with hard reset, which removes all user data, settings and applications and returns a device to the same state it was in when it shipped from the factory.
1. First step of this guide will on unlocking your screen and holding down power button.
2. If you did first step corectly you should be seeing this menu on your screen:
3. Now tap on the Reset or Reboot option.
4. And this is it! Your phone will restart and will be ready to use in few seconds.