File update system and boot management system of mobile communication terminal, method of updating file in mobile communication terminal, and method of booting mobile communication terminal

1. A file update system of a mobile communication terminal, comprising:

an EFS (Embedded File System) area of a mobile communication terminal memory;

a file reader to read a file to be updated from a first region of the EFS area of the mobile communication terminal;

an EFS area assignment unit to assign a second region of the EFS area of the memory for storing an updated file; and

an update processor to store the updated file in the second region of the EFS area assigned by the EFS area assignment unit, and if the header of the updated file is damaged, to read old version information from a header of the file to be updated, and to record newer version information than the old version information in a header of the updated file.

2. A mobile communication terminal equipped with the file update system of claim 1 .

3. A method of updating a file in a mobile communication terminal, the method comprising the operations of:

reading a file to be updated from a first region of an EFS (Embedded File System) area of the mobile communication terminal;

assigning a second region of the EFS area for storing an updated file; and

storing an updated file in the second region of the EFS area, and if the header of the updated file is damaged, reading old version information from a header of the file to be updated, and recording newer version information than the old version information in a header of the updated file.