A few weeks ago I rooted my Droid 4 using bubsybox/motofail. About an hour after rooting SU updated itself and I lost the ability to have super user control. Even though I was rooted and had open permission allowed, all my apps said my 4 was not rooted. I got so frustrated I just let it be. Fast forward and I'm having major battery issues so I am getting the phone replaced (gg non removable battery). And now I'm stuck as how to get SU off before Verizon gets it back. I have tried to unroot then reroot and unroot using droid utlilty. And every time it has claimed 'SUCCESS' however i see the error lines in the program about SU already existing. "rm failed for ... read only file system" I have also factory reset. So now I'm at a loss, I've searched the forums but with no luck as to this specific problem. Any and all help is welcome.