I2C problem with a BNO055

[Syl202]

Hello,

I am using a BLE nano board with a BNO055 sensor and I am enable to get the data from the sensor.
Everything has been plugged correctly but I still have this message : "Ooops, no BNO055 detected ... Check your wiring or I2C ADDR!" (see the sketch below)
I have no idea how to solve that because it worked without any issues on an Arduino Genuino.

I saw that the BLE Nano has some troubles to work with I2C sensors but I hope someone who know the solution will help me.

Thanks