How can I connect an I2C senor to ConnectCore 6 SBC with android?

Hello I just get started with the ConnectCore 6 SBC board.
At the moment I just want to connect an I2C sensor to the board.
But it dosnt work for me. I connected the pins like this:

ConnectCore Sensor
(from top to bottom)
pin 1 SCL
pin 2 SDA
pin 3 3V3
pin 6 GND

Can someone help me?

do you have a Linux and Android driver for the sensor? is it been loaded? What do you expect to happen after you connect the sensor?