my phone will not charge anymore for some weird reason. it was getting harder and harder to get the phone to recognize the charger and now it has completely stopped. im going to put my battery in a friends phone to charge it so i can unroot it and get it back to stock so i can return it, but im not exactly sure how to do this. do i wipe it all and then load the last nandroid backup before i loaded liberty? only thing is the app i used to root it insnt showing up on my phone so im not sure how i unroot it so that i can return it for a new phone thanks in advance for your help.