[fso] disable led blinking?

[arne anka]

hi,
how do i disable blinking of ab led via mdbus?
neither
mdbus -s org.freesmartphone.odeviced   
/org/freesmartphone/Device/LED/gta02_power_blue   
org.freesmartphone.Device.LED.SetBlinking  0 1500
nor
mdbus -s org.freesmartphone.odeviced   
/org/freesmartphone/Device/LED/gta02_power_blue  
org.freesmartphone.Device.LED.BlinkSeconds 0 0 0

do change anything.
i'd expect some function like BlinkingOff or so ...