Default [Q] accelerometer problem

Does anyone know how can i calibrate the accelerometer?

I have this issue and is annoying:
When i hold my device on vertical the accelerometer readings are 0, 84 , 6... on horizontal are normal 0, 0, 90.
In camera mode virtual tour it is forcing me to lean the device backward... please help i don t want to return the product because it doesn t have any other issues...