Question about firmware and digital frequencies

Hi guys, new to scanning and just got my first scanner a bcd396xt. Very hard to figure out. Bought it used and it has firmware 1.08.14. What will updating it do for the scanner? I'm not picking up hardly any digital transmissions from the Ohio State highway patrol posts in my area. Does the firmware have anything to do with this? I've gathered the MARCS system went thru a rebanding recently. These things related? Please help thanks