Method and device for performing data synchronization of a snapshot image by selectively reloading data from nonvolatile to volatile memory after wakeup from hibernation

A method for supporting a hibernation function of a mobile device, the method comprising:

• detecting a wakeup event in a hibernation mode;
• in response to the wakeup event, loading a snapshot image into a volatile memory from a snapshot image region of a nonvolatile memory;
• after the loading of the snapshot image, determining whether a system status has been modified by comparing data in the snapshot image loaded into the volatile memory with data stored in a database region of the nonvolatile memory;
• if the system status has not been modified, finishing a system boot;
• and
• if the system status has been modified, performing data synchronization by reloading data from the database region of the nonvolatile memory into the volatile memory, and then finishing the system boot.