Patent ID: 8395518

Claim:
A mobile terminal comprising: a control unit which erases a screen of a display device and displays a reason of the erasing and/or a coping process; and a detection unit which judges after a detected low-voltage state occurs whether a battery charge is performed or not, when a turning on operation thereof is carried out, and judges whether a battery exchange is performed or not, when the battery charge has not been performed; wherein the control unit controls the display device of the mobile terminal to display a turning-on indication when the battery charge is performed and when the battery exchange is performed; wherein the control unit erases the screen of the display device and displays the reason of the erasing and/or coping process when the battery exchange has not been performed, and wherein the display of the reason of the erasing and/or coping process is deleted after a predetermined of time period and the control unit turns off power of the mobile terminal.