you should use gconftool-2 for that: activate: gconftool-2 -s -t bool /system/osso/dsm/energymanagement/force_power_saving true deactivate: gconftool-2 -s -t bool /system/osso/dsm/energymanagement/force_power_saving false check status: gconftool-2 -g /system/osso/dsm/energymanagement/force_power_saving