AlarmManager.RTC_WAKEUP not working for some devices

Question

I am using AlarmManager in my application to set alarm for a particular time. I have used AlarmManager.RTC_WAKEUP to set the alarm. When I am testing the same it's working on number of device like Lg optimus, Sony Xperia etc. But while testing the same app in Samsung Galaxy S3 I found that alarm is not working. I am still unable to understand why is this happening.

I am using following code to set alarm :-

            // create the object
            AlarmManager alarmManager = (AlarmManager) getActivity().getSystemService(Context.ALARM_SERVICE);

            //set the alarm for particular time

            alarmManager.set(AlarmManager.RTC_WAKEUP,cal1.getTimeInMillis(), PendingIntent.getBroadcast(getActivity(),reminderId,  intentAlarm, PendingIntent.FLAG_UPDATE_CURRENT));

Someone please help me to solve this strange problem. Any help would be appreciable. Thank you

Answer 1

I'm not sure but it sounds the problem is with the way you set cal1's time and maybe different timezone.