[jmart518]

It sounds like something you are installing or a configuration you are setting is breaking the calendar. There are two ways of going about this:

First, you can try to uninstall everything you installed and check to see if the calendar starts working again. If it does, than start installing your programs one at a time and test the calendar after every install. This will isolate the problem program.

or

Just hard reset and install your programs one at a time and test the calendar after every install.

I seriously doubt it is your phone or any hardware that would be causing your problem.

Good luck buddy!