Resetting a Samsung tablet if a student locks you out

  1. Press and hold Volume Down, Home and Power buttons until the Odin screen appears.
  2. Release the buttons and tap the Volume Down button to restart,
  3. Quickly press and hold Volume Up, Home & Power buttons until the Samsung logo appears on the screen.
  4. Wait a bit...
  5. Scroll to wipe data/factory reset by pressing the Volume down button.
  6. Press the Power button.
  7. Login with previously used elcho.org account.