The devices location settings can only be set manually.
The LocationSensor.Enabled = true or false disables the LocationSensor component from
actively using the GPS receiver. It does not deactivate the devices ability to use the GPS receiver (it cannot programably turn it off or on.)
If the GPS is activated manually, it stays on until the USER changes the Android Settings to deactivate it. To deactivate use of the receiver, uncheck in the Settings Location sources Use GPS satellites..
(The actual screen appears differently on different Android OS versions.)
Yes, the USER must turn the GPS receiver on or off manually and it can only be controlled manually.
Regards,
Steve