Good news for Seattle Seahawks corner Quinton Dunbar -- prosecutors are DROPPING all criminal charges against him stemming from an alleged armed robbery incident.
Bad news for New York Giants corner DeAndre Baker -- some of his charges are moving forward and he now faces up to life in prison.
As we previously reported, Baker -- along with Seattle Seahawks corner Quinton Dunbar -- was arrested for allegedly robbing several people at gunpoint during a May 13 cookout in Miramar, FL.
Cops initially said ... witnesses told them Baker pulled out a semi-automatic firearm and directed Dunbar to start taking expensive watches and other valuables from people at the cookout.