I have a Fenix2 and recently installed the cadence and speed sensor. I was doing my syncs without any problem but just recently the iPad gives me sync failed messages. I uninstalled and reinstalled the app in my iPad but the problem continues. I was just able to paired my android to the fenix2 After multiple attends but I still have problems with the syncs. I'm getting frustrated, reading FAQ and looking for an answer in the manual without any luck. Please your help. Thanks.