Has anyone ever had this happen to them?

[Heathknight]

I just got this phone so i don't know the history of it. In the corner of the screen there is a half circle that never works it just stays black what do you think it could be?

 

[Backnblack]

Looks like a defect.

What Phone?
Where you get it?

 

[Heathknight]

its used from ebay and its an original Droid build number FRG83G

 

[AngryHatter]

Fleabay is bad juju.