Disclosed are a high-grade privacy
smart phone and a method for protecting private information of the high-grade privacy
smart phone. The
smart phone is composed of a
radio frequency processor, a base-band processor, a first
application processor, a second
application processor, a display controller, a display module and the like.
Wireless communication operation is carried out on the base-band processor. A first
operating system in the first
application processor is mainly used for
processing multimedia application and the like with low privacy requirements. A second
operating system in the second application processor is mainly used for
processing personal issues with high privacy requirements. The first
operating system and the second operating
system are isolated from each other and form subsystems. Meanwhile, through hardware setting, third-party
software can not be installed on the second operating
system after the second operating
system leaves a factory, or even,
firmware upgrade can not be carried out, and therefore the second operating system becomes a
closed system. According to the protection method, the first application processor and the second application processor which are independent of each other are used for
processing the private personal issues and the
multimedia application respectively.