BlueWater

the android terminal when you are using as a mobile router, manually ON the tethering feature, but you need to OFF, the With this app, ON of tethering to automatic through Bluetooth, can OFF, there is no need to issue from such bag you.
The tethering ON when screen unlocked
The tethering OFF when screen off

Server mode: mobile router side
Client mode: use Sumaho

home mode: Please to ON in case there is no need for tethering, such as a house.
eco mode: when the client side of the screen is turned off, I will break the connection bluetooth. when the screen is turned on, I will re-connect.

Switching of tethering ON · OFF or home, eco mode, not only from the screen of the app, you can set also change from the notification Erika.

Please keep doing the pairing of the Bluetooth in advance.