Hello Rita, and thank you for using this service.
Sorry to hear you are having these troubles. I'll see what I can do to help.
Have you tried or are you able to remove the BATTERY from the unit? If you can remove the battery, have you tried running with just the AC adapter?
I can try to find details about your model, but if the batter can be removed, you should see a way with a sliding latch of some sort on the bottom of the unit. Usually you'll push the release and then pull out or let the battery sort of fall out.
AC adapter is power cord.