An apparatus comprising: a display unit; a short range communication module; and a controller configured to: establish a communication connection with a first external terminal, through the short range communication module, identify setting data of the apparatus, the setting data comprising setting information related to an application installed in the apparatus and linked to the first external terminal, create back up data based on at least part of the setting data, and transmit, through the short range communication module, the back up data to the first external terminal, while communicating with the first external terminal through the communication connection, receive a connection request from a second external terminal through the short range communication module, based on identifying a user input configured to cause the apparatus to release the communication connection with the first external terminal and to connect to the second external terminal, release the communication connection and remove the setting data and establish another communication connection with the second external terminal, receive, through the short range communication module, back up data for the second external terminal which was stored in the second external terminal, restore another setting data identified based on the received back up data for the second external terminal. a display unit; a short range communication module; and a controller configured to: establish a communication connection with a first external terminal, through the short range communication module, identify setting data of the apparatus, the setting data comprising setting information related to an application installed in the apparatus and linked to the first external terminal, create back up data based on at least part of the setting data, and transmit, through the short range communication module, the back up data to the first external terminal, while communicating with the first external terminal through the communication connection, receive a connection request from a second external terminal through the short range communication module, based on identifying a user input configured to cause the apparatus to release the communication connection with the first external terminal and to connect to the second external terminal, release the communication connection and remove the setting data and establish another communication connection with the second external terminal, receive, through the short range communication module, back up data for the second external terminal which was stored in the second external terminal, restore another setting data identified based on the received back up data for the second external terminal. establish a communication connection with a first external terminal, through the short range communication module, identify setting data of the apparatus, the setting data comprising setting information related to an application installed in the apparatus and linked to the first external terminal, create back up data based on at least part of the setting data, and transmit, through the short range communication module, the back up data to the first external terminal, while communicating with the first external terminal through the communication connection, receive a connection request from a second external terminal through the short range communication module, based on identifying a user input configured to cause the apparatus to release the communication connection with the first external terminal and to connect to the second external terminal, release the communication connection and remove the setting data and establish another communication connection with the second external terminal, receive, through the short range communication module, back up data for the second external terminal which was stored in the second external terminal, restore another setting data identified based on the received back up data for the second external terminal.