Some applications aren't ended completely when your phone returns to standby mode, but keep running in the background unless you end them from the list of active applications. Follow these instructions to end active applications.
Step 1 of 6
End active applications
Press the Application key.
Step 2 of 6
End active applications
Press and hold the required application to open a pop-up window.
Step 3 of 6
End active applications
Press App info.
Step 4 of 6
End active applications
Press Force stop.
Step 5 of 6
End active applications
Press OK to confirm.
Step 6 of 6
Exit
Press the Home key to return to standby mode.
End active applications
Press the Application key.
Press and hold the required application to open a pop-up window.