I'm sorry about the issue. What's the model of your phone, such as Doro PhoneEasy 618, or Doro Primo 413, etc.?
What happens when you connect the phone to the computer with the USB cable? Does the computer make a sound? Does it show anything in Windows Explorer (or in Finder) on the computer?
Do you have windows xp, vista, or 7, or 8, 10, or mac computer?
Please reply at the box below. Thank you.