Terminal device and version upgrading method

A terminal device, comprising:

• a partitioning module configured to partition a user data partition of the terminal device into a formatted partition and a data retention partition upon reception of an upgrade instruction to upgrade a current version of a software system of the terminal device;
• a backup module configured to backup user data in the formatted partition into the data retention partition;
• a formatting module configured to format the formatted partition to delete the user data in the formatted partition, after the user data in the formatted partition are backed up into the data retention partition;
• an upgrading module configured to obtain an upgrade package corresponding to a target version of the software system, and to upgrade the current version of the software system of the terminal device to the target version using the upgrade package after the user data in the formatted partition are deleted;
• and
• a compatibility-processing module configured to process compatibility of user data in the data retention partition using the target version so that processed user data are compatible with the target version, and to store the processed user data into the formatted partition.

A version upgrading method applicable to a terminal device, the method comprises:

• partitioning a user data partition of the terminal device into a formatted partition and a data retention partition upon reception of an upgrade instruction to upgrade a current version of a software system of the terminal device, wherein the user data partition is configured to store user data;
• backuping user data in the formatted partition into the data retention partition, and formatting the formatted partition to delete the user data in the formatted partition;
• obtaining an upgrade package corresponding to a target version of the software system, and upgrading the current version of the software system of the terminal device to the target version using the upgrade package;
• and
• processing compatibility of the user data in the data retention partition using the target version so that processed user data are compatible with the target version, and storing the processed user data into the formatted partition.