I tried to undo all the changes this app does to my phone, and it all worked until I tried to unroot. It says that unrooting was successful and to reboot/reinstall update.zip, but when I do that I get a message saying assert failed, status 7, installation aborted, and I'm still rooted. I don't know if there's something wrong with the update.zip file. I did some googling and it seems the only solution is to use some "odin" app, which would wipe out my phone, which I really don't want to do. Any ideas?