delete phone protected files

[fane_veve]

in mobyexplorer .. go to the file you want to delete, hit Menu -> Properties.. then deselect Read Only.. hit Ok.. now they are unlocked and can be deleted

[deaddance]

in mobyexplorer .. go to the file you want to delete, hit Menu -> Properties.. then deselect Read Only.. hit Ok.. now they are unlocked and can be deleted

i have entered to properties of the file video dj, and READABLE was checked, so i have unchecked it, and then i deleted the folder.but when i entered again to file manager, it wanst deleted.... why? what have i done wrong?
what shall i do???