So heres the story. I have a galaxy s3'that is activated with sprint under my x gf parents account. It was a bad break up and out of spite they stopped the signal to the phone but its still actively in service. I dont have the account password and they will not deactivate the phone or let me switch out the phone with another so I can sell it. Is there anyway to whip the hard drive or some how get the phone deCtivated with a clean esn so I cant sell it to someone and have it able to use.