Before calling for support, you can first use the 
		Help app to troubleshoot or perform diagnostics on your phone. 
	 
 This helps you in finding the problem cause, and in determining whether you can resolve the problem or you need to call for support. 
  
 
	  
		 
		  From the 
				Home screen, tap 
				
, and then find and tap 
				Help. 
			  
		 
	  
 
	  
		Note: If HTC 
		  Help is not preinstalled on your phone, you can download it from 
		  Google Play.