Can't get values from sensors

[MMike17]

I can't get any of the sensor to work on the phone.

Once the project is built and installed on the phone I have a debug text that tells me that the sensor object exists and that is all, after that none of the sensors work. It seams like the sensorValue variable stays empty whatever the sensor that I try to get the values from. I use an Alcatel A2 with android 5.1 Lollipop and Unity 2018.1.6f1.