Well rooting is an exploit employed by hackers to get around security. If they make an "unrootable" phone it'll only be a matter of time before someone cracks the system. Really there's no such thing as a unrootable device in my opinion. They can increase security and make it more difficult to root. But in the end even the most secure systems can be cracked with enough time and effort.
Do I believe that Motorola would try to block exploits? Yes. Can they block them 100%? No.
they can try all they want... at the end of the day if they succeed.. they'll lose customers no matter how good their device is.. unless they make future OS FULLY CUSTOMIZEABLE we'll go to a manufacturer that we can still root and control
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