Samsung Galaxy Note8 - Factory Data Reset (Powered Off)
A factory data reset may help with a blank or frozen screen, apps crashing or freezing, keypad/touchscreen problems, can't hear, device making noises, can't make or receive calls, and device won't sync.
For devices with Android Device Protection turned on, it's imperative Google™ sign-in credentials are known prior to completing a factory reset with the device powered off. If credentials are unknown, do one of the following:
Attempt to sign in with any Google account previously used on the device.
Perform a factory data reset only if absolutely necessary as it removes all data including:
System and app data
Media (Music, pictures and videos, etc.)
Ensure the device is powered off.
Press and hold the Volume down and Power buttons until the Samsung Galaxy Note8 logo appears then release all buttons.
This action boots the device to the Android Recovery screen.
Allow up to 45 seconds for the recovery screen to appear.
From the Android Recovery screen, select Factory reset.
Utilize the volume buttons to cycle through the available options and the Bixby button to select.