Device administrators (PIN Code)

Dec 1, 2010
Since the dawn of MIUI, I've used my workmail (Exchance). It requires me to use PIN code when unlocking the phone.

Until 1.7.29 i could choose WHEN to use this PIN lock, and then choose not to use it when unlocking the phone. I dont have this option anymore. Has something changed? Or is there anything I can do?