Hall made the Ravens' practice squad in 2011. He earned a spot on the team in 2012 as a defensive lineman and was part of the franchise's Super Bowl championship.
Was asked to move to linebacker in 2013.
"It put me back a little bit," he said. "Baltimore gave me a wonderful opportnity to go in and compete at linebacker and to replace great players like Ray Lewis and Dannell Ellerbee. That opportunity was there for me and I came up short on it. So now I am trying make things right and go back to what got me there.
"What I am trying to do today is hopefully get a little buzz going. That is what I came today and hopefully I did well enough to earn that."
He was in the last group of players cut. He had a tryout with the Philadelphia Eagles but that did not produce a job offer.
Hall said he went from a 299-pound defensive lineman to a 245-250 pound linebacker. He weighed in at 297 on Friday.
"I don't know exactly what I ran (believed to be in the 4.8 range) but I know I did my best and I am looking forward to what comes from it," he said.
"I am out here to see if get something going. Hopefully, everything will work out for me."
He was one of more than a dozen former Arkansas State Red Wolves worked out for seven National Football League scouts at the Jonesboro High School indoor football complex Friday.
The 2014 National Football League Draft set to begin May 8 and run for three days. NFL?teams participating were the San Diego Chargers, St.?Louis Rams, New York Giants, Tampa Bay Buccaneers, Seattle Seahawks, Buffalo Bills and Oakland Raiders.