Hey guys... I found an interesting read while browsing ...etc..
have a look at this app and PLEASE DO READ their description for a clearer understanding of how GOOGLE originally implemented the restrictions...etc
It'll explain it way better than I have been able to described ! 
Disclaimer:
*** REQUIRES ROOT ACCESS ***
Try at your own risk 

https://play.google.com/store/apps/details?id=nextapp.sdfix
Last edited: Dec 29, 2015