How To Clear All Data From Samsung S7

Reset Device

Perform a soft, factory, and alternate master reset of the device.

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INSTRUCTIONS & INFO

POWER CYCLE YOUR DEVICE: There are multiple ways to reset your device if you are experiencing issues. The first step is to power cycle your device. Press and hold the Power/Lock button, then selectPower off. Select Power off to confirm. To turn the device back on, press and hold thePower/Lock button until the screen lights up.
RESTART YOUR DEVICE: If a power cycle does not resolve your issue, perform a device restart. Press and hold thePower/Lock button, then selectRestart > Restart.
Note: If you are unable to access the screen to 'Restart' the device or if it becomes unresponsive, press and hold the Volume down and Power/Lock buttons simultaneously for 10 seconds, until the device restarts.
FACTORY DATA RESET: If you are still having issues with your device, you may need to do a Factory data reset (Master reset). This will erase all data on your device and restore it to factory settings. From the home screen, swipe down from the Notification bar then select the Settings icon >General management > Reset > Factory data reset > RESET > DELETE ALL.
Note: A Factory data reset will revert the device back to factory settings. It will permanently erase all personal data, preferences, settings and content such as pictures, ringtones and apps that are saved to the device. It is recommended that you save (backup) important data before proceeding.
ALTERNATE MASTER RESET METHOD: If unable to reset the device using the above steps, try the Alternate master reset method. With the device powered off, press and hold the Power/Lock, Volume up, andHome buttons simultaneously until the Android Recovery screen appears.
Press theVolume downbutton until Wipe data/factory reset is highlighted, then press thePower/Lock button.
Press theVolume downbuttonuntilYesis highlighted, then press thePower/Lock buttonto begin the reset process.
When the Android Recovery screen displays again, ensure that Reboot system now is highlighted then press the Power/Lock button.
RESET NETWORK SETTINGS: If you are having connectivity issues, you can try resetting your network settings. From the home screen, swipe down and select and Settings icon > General management > Reset > Network settings reset > RESET SETTINGS > Select RESET SETTINGS again to confirm.
Note: Resetting your network settings deletes previously associated Wi-Fi networks, security passcodes, Bluetooth devices and cellular network data settings.