can anyone try this. dont have a 9210 right now with me.
if you want to show z drive in filemanager you should be install fileman on 9210 in d drive, press ++sp an make the z drive visible, then put the mmc in 9500 and copy d::/system/apps/fileman into c drive, remove mmc, restart filemanager and delete any files in c:/system/apps/fileman , but not fileman.ini, if there are problems use powerfile to delete, now you should be see the z drive in original fileman.