From what I can read and not being expert, the hash mark # comments out lines, so should be removed.
Also, the link @tbg links, gives - Configuration
### Auto power-on after boot
By default, the Bluetooth adapter does not power on after a reboot, you need to add the line `AutoEnable=true` in the configuration file `/etc/bluetooth/main.conf` at the bottom in the `[Policy]` section:
/etc/bluetooth/main.conf
[Policy] AutoEnable=true
### Discoverable on startup
If the device should always be visible and directly connectable:
/etc/bluetooth/main.conf
[General] DiscoverableTimeout = 0
Try to make the changes and test, then report your findings. 