Patent ID: 9588846
Date: 2017-03-07
CPC Classifications: G06F

Claim:
1. A mobile terminal operated by an open operating system, the mobile terminal comprising: a display; a memory configured to store a backup restoration application and at least one application on an application layer; and a controller configured to: perform an init process in order to create a backup restoration service unit on a Linux kernel and establish a channel between the backup restoration application and the backup restoration service unit, wherein the channel is established by transmitting a first public key from the backup restoration application to the backup restoration service unit and receiving, at the backup restoration application, a second public key from the backup restoration service unit in response to the first public key, the first public key and the second public key transmitted or received internally within the mobile terminal; perform the init process to grant a root authorization to the backup restoration service unit to allow the backup restoration service unit to access a file system of the at least one application while the backup restoration application does not have an access authority to access the file system; back up a blacklist, including at least a first application that is not supposed to be backed up, via the backup restoration application; and receive, from an external device or a network, a second application that corresponds to the first application listed in the blacklist while a restoration operation is performed to restore an operable version of the first application, wherein the first application is not restored, wherein the first and second applications are different versions of a same application such that a version of the first application is inoperable in the mobile terminal even if the first application is restored in the mobile terminal while a version of the second application received from the external device or network is operable in the mobile terminal.