Hi David. Welcome to justanswer.
Are you able to turn off the phone?
Can you tell me are you using Windows or Mac OS on your computer?
Once you click this link below(CLICK HERE)A file will automatically get downloaded. Check your download section, a file named ELSINORE.SCREENCONNECT will be present. Just open that file so that I can connect to your computer.
On your phone, remove the back cover and remove the battery.