Sometimes the install does not show the menu items and the menus need to be recompiled.
To do that, from Sage 100 select File -> Run and enter SY_Menu_Ui and press OK. This will bring up Sage 100 menu maintenance.
Pull up the bar code/mobility menu, see if you see the menu items in there (they are in the installs). If you do not see them then the Mobility service update was not installed before the MB Mobility service update was installed. If you see them in there press Accept and it will recompile the menus and they will show up.