I have a blue round logo on a white square background. I just want a round logo, how do I eliminate the white square behind it?
Depends on what you want to do with that logo (and how you got it onto your device)
You might want to explore your options in Adobe Capture Edit photos, shapes to vectors and graphics | Adobe Capture CC
I just want to make sure you weren't trying to post in the Illustrator forum. Let me know if you were and I'll move your post there.