Heb het apparaat niet, maar kijk of het volgende helpt:
Factory reset the Galaxy S6 Edge: hardware buttons
This method is useful if you can't access the settings menu for some reason or can't even get your phone past the boot screen.
1. Turn off your Galaxy S6 Edge.
2. Press and hold the Power, Home and Volume Up buttons simultaneously.
3. After you see the blue Android screen you'll be taken to the Recovery Menu.
4. Use the volume buttons to scroll and the Power button to confirm.
Scroll to Wipe Data/Factory reset and press the Power button.
5. Scroll down to Yes and press Power again to factory reset the Galaxy S6 Edge.
6. Reboot your Galaxy S6 Edge and restore your apps and data from your backup.
Lijkt trouwens behoorlijk op de factory reset manier van de HTC, valt me op.
Tijs.