A hard reset, also known as a factory reset or master reset, is the restoration of a device to the state it was in when it left the factory.
All settings, applications and data added by the user are removed.
The term is often heard in reference to smartphones and tablets but laptop and desktop computers, as well as most other electronic devices, can usually be restored to factory conditions.
1. First thing you got to do to start the process is turning off your Galaxy S8.
2. Now press and hold Power button with Home button and Volume Down button.
3. Wait untill SAMSUNG logo appears on your screen, you can let go of the buttons.
4. Now there should be recovery mode menu on your screen, that looks similar to this.
5. Here use the Volume buttons to scroll through the option and use the Power button to choose the highlighted area.
6. Go down to wipe data/factory reset option and confirm it with power button.
7. And this is it! Your Phone will restart after hard reset and will be ready to work.
All settings, applications and data added by the user are removed. The term is often heard in reference to smartphones and tablets but laptop and desktop computers, as well as most other electronic devices, can usually be restored to factory conditions.