Reset the network settings when you're having problems connecting HTC Desire 12 to your mobile data or Wi-Fi network and Bluetooth devices.
 
	 -  
		  From the 
				Home screen, swipe up and then find and tap 
				Settings. 
			  
		
-  
		   Tap 
			 . 
		   
		  
		
- In dual SIM phone models, tap  to select a card slot. to select a card slot.
-  
		  Tap 
			 Reset settings. 
		   
		
- Tap 
			 Reset settings.