Method for changing performance controlling parameter for mobile telecommunication terminal

A method of performance upgrading for a receiving terminal, comprising:

• receiving a message of a messaging service via a network, wherein the message of the messaging service includes information related to at least one parameter for the performance upgrading of the receiving terminal;
• comparing a password within the received message with a previously stored value in a memory of the receiving terminal;
• storing the received message and changing the at least one parameter within the receiving terminal based on the received information within the message;
• and
• upgrading a performance of the receiving terminal based on the changed at least one parameter stored within the receiving terminal, wherein the upgrading is performed only when the password within the received message is identical to the previously stored value in the memory.

A mobile communication apparatus, comprising:

• a transceiver to transmit and receive data;
• a memory to store the data from the transceiver or from an external source;
• and
• a processor cooperating with the transceiver and the memory to perform:
• receiving a message of a messaging service via a network, wherein the message of the messaging service includes information related to at least one parameter for the performance upgrading within a receiving terminal,
• comparing a password within the received message with a value input by a user of the receiving terminal,
• storing the received message and changing the at least one parameter within the receiving terminal based on the received information within the message;
• and
• upgrading a performance of the receiving terminal based on the changed at least one parameter stored within the receiving terminal, wherein the upgrading is performed only when the password is identical to the value input by the user of the receiving terminal.

A method for changing a performance controlling parameter of a mobile telecommunication terminal, comprising:

• receiving a message from a network, wherein the message includes a key value of a mobile telecommunication terminal and a new performance controlling parameter of the mobile telecommunication terminal to be changed, wherein the key value is used to certify a sender of the message;
• storing the key value and the new performance controlling parameter in a memory of the mobile telecommunication terminal;
• replacing a previously stored performance controlling parameter of the mobile telecommunication terminal with the new performance controlling parameter of the mobile telecommunication terminal only when the stored key value corresponds to a previously input password;
• and
• controlling a performance of the mobile telecommunication terminal based on the new performance controlling parameter stored in the memory.