Call the Cyber Police, maybe they'll knowJk, try getting on your computer and googling on how to do it. Also the make and model of your phone would help too, along with what software it uses, like Andriod, IOS, etc
I also did some research on it and doing a factory reset will be your best and safest bet. If you can, try connecting your phone to your computer and try to back up your photos and etc.
can't seem to back up the photostime for a factory reset anyways. ripgood thing they werent anything too important or hard to come by