Hi,
I've tried to setup a timer with Alarm.TriggerOnce(); from a menu and it's working ... also changing the timer with new value it's working again ... so now i need to adjust a little bit and clean a program ... then when i will finish the project i can did some Minutes with my experience ... maybe could be useful 
for the moment I think could be solved
thanks for the support,
very appreciate it,
regards,
gnux