i was exploring my settings and clicked accessibility. whatever i did in there has now made my phone useless. anything i select just highlights itself red and a female voice states what i selected but thats as fas as it goes. nothing opens. for example. i click the home icon, she says home, i click the menu button and she says "add wallpaper search notifications settings. i click settings and the only thing that happens is she says settings and the settings selection turns red but doesnt open. how can i get back into the settings to undo what i selected?