Hi I used this and I think it worked well. But then without a reason I tried z4root with this. It caused some minor problems. How can I remove superuser.apk and turn it back to normal? I it from my backups but they didn't work. Please help me. ps. the old one was U8800 V100R001C00B135SP01CUSTC205D001 edit: I think my friend managed to fix it after all.