Screen Will Not Rotate 180 Degrees

[Garys Student]

I have a LG Lucid 2 cell phone. I have configured it to rotate the display if I rotate the phone. If I rotate the phone 90 degrees, the display rotates to match. But if I rotate the phone 180 degrees (hold the phone upside down) nothing happens. Is this normal behavior or is the phone broken??

 

[PapaGary]

Normal.