I've run to the issue a number of times with the 10.9.2 update, and have
resolved it one of two ways. Most are resolved by deleting the login
window preference file:/Library/Preferences/com.apple.loginwindow.plist
And those that still exhibit the iss...
While not necessarily a solution to managed devices that already have
Activation Lock on them, there are resources from Apple to use
Configurator to allow for Find My (iDevice) while leaving the Activation
Lock off. http://support.apple.com/kb/HT5927...
