I've found something if I'm scanning only Favorites Lists (as in the main database is off) that may be a clue for you.
If a given service type isn't associated with a channel in any of the Favorites Lists, I do not have the option to turn that service type on or off.
For example, none of my Favorites Lists have any channels with "Media" as the service type. When I go to "Select Service Types" from the scanner menu, I'll see three dashes beside Media in the "Select Service" screen.
On the other hand, for example, I have "EMS Dispatch" as the service type for channels programmed in the Favorites Lists. Thus I'll see "On" or "Off" beside the "EMS Dispatch" when I go to Menu>Select Service Types.
Best method I've found is to turn on all the service types and then use a series of small, single agency favorites files. If I want to hear the Border Patrol for example, I just activate that favorites list. I also set up what I call "travel lists" for each county in Arizona besides the one I live in. That way, as I enter a county line, I can easily scroll to the appropriate favorites list and turn it on - no need to hassle with entering zip codes or connecting a GPS.
I do the same as AZ. I have all service types turned on and control what I hear via very narrowly defined favorites lists. For instance, in Tucson I have separate favorites for each of the TPD teams, TFD, corrections, etc
Just to be sure I understand, are you saying you've written a Favoites List to the scanner, but the scanner isn't scanning that Favorites List?
If that's the case, the first thing I'd do is confirm that the Favorites List is indeed in the scanner. You can verify this by Menu>Manage Favorites then scroll down to see if that Favorites List is there.
If it is, then I'd run through the "x36 Nothing to Scan checklist" and see if one or more things there isn't the culprit.
(You might not be seeing that "Nothing to Scan" message on the scanner. I suspect that's because you are scanning the Full Database, thus there is something to scan, but not necessarily exactly what you want).
Bing go that what it is say nothing to scan .But in the program I have a Favorite in ready to go . I clicked write to scanner .But I still get nothing to scan. This worked for me before . But now it is not working . :/ The national works fine.
Thanks ofd8001 for your help .