Galaxy S6 (SM-G920P) FRP
 

Flashed Stock firmware using Odin, suddenly said "Erasing" then rebooted to FRP.

My kid got it off facebook, prev. owner "has no idea" so here we are.

Whats my next move?

Flash combination firmware and remove FRP via ADB method.

Here are files that are necessary to unlock the phone:
Samsung Combination Firmware Database by HardReset.info Team

If necessary is manual with step by step instruction here you got all needed:
How to bypass Google Account verification in Samsung Galaxy phones by HardReset.info Team

i followed your advice, and it worked like a charm! i spent all night binging on google, and have really enjoyed learning about this stuff! think im may have found a new field of interest! you guys are awesome. thanks!