1) It requires Root in order to function probably 2) need to uncheck Auto Date & Time Setting in order to function probably 3) it allows to adjust to speed up by changing the spinner box (1x= without change 10x= 1 second= 10 seconds 30x= 1 second= 30 seconds 60x = 1 second = 1 minutes 300x= 1 second= 5 minutes) 4) manually add 1 hour / 1 day by pressing the button (+HR/+Day) If it is not support your phone or Install, setting , usage, any problem can reach me on E M A l L or