Samsung Galaxy S8 Active User Manual page 180

Factory reset protection
When you sign in to a Google Account on your device,
Factory Reset Protection is activated. Factory Reset
Protection (FRP) prevents other people from using
your device if it is reset to factory settings without
your permission. For example, if your device is lost or
stolen and a factory data reset is performed, only
someone with your Google Account username and
password can use the device.
You will not be able to access the device after a factory
data reset if you do not have your Google Account
username and password.
Caution: Before shipping your device back to Samsung
or taking it to your nearest Samsung-authorized
service center, you should remove your Google
Account before resetting the device back to factory
settings. For more information, visit
samsung.com/us/support/frp.
Device maintenance
Enable factory reset protection
Adding a Google Account to your device automatically
activates the FRP security feature.
Disable factory reset protection
To disable FRP, remove all Google Accounts from the
device.
1. From a Home screen, swipe up to access Apps.
2. Tap Settings > Cloud and accounts >
Accounts > [Google account].
3. Tap Remove account.
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