should be straight out the box ready to go with all the settings already fixed into the gun as standard, the only thing you need to do is decide which mode you want .. eg :- press 4 x times on the button and hey presto your in Millennium mode with all the settings done for you, take the battery out and it goes automatically back into settings as when you got it out of the box , that`s Semi Unlimited . but if you get the battery in before 10 x seconds, it should hold the settings you had.. got to be quick though !! This is the only reason people people wanted to change the board, If you Know this and can do this ? there is NO need to change anything as the board is amazing anyway, remember this is Not a Low to middle end gun but a middle to Top end gun.