Chosen Solution
My Iphone 6 only has its sounds, but I can’t call or text anyone from it. What can I do to fix it?
You should probably take it to the store but I would suggest restarting your phone.
Either the lcd has a hairline crack and blacked out. Or the connection to main board from lcd/screen is loose.
Try to restart the phone by pressing the home and power buttons together for couple second, if U just heard a vibration sound and no screen I suggest U to open the phone and check the connection between the screen and the motherboard because maybe one of the cable may be broken or just not connected
