Archived:Cannot switch on device backlight or vibration in MIDlets on S60 1st Edition (Known Issue)
It is not possible to switch the device's backlight or vibration on in MIDlets for S60 devices.
After a short delay without any key presses, the backlight goes off.
Class com.nokia.mid.ui.DeviceControl defined by the Nokia UI API is not implemented in S60 devices. Thus, it is impossible to control the backlight and vibration in S60 MIDlets.