Just has the root button. Do you have the z4root apk? If you'll email it to me so I could try installing you version and see if it allows me to unroot, it would be much appreciated.
I actually just re downloaded mine off of xda site the other night bc I had to restore bc of diff reasons....he did an update to it about a month ago if u havnt got it since then
z4root needs superuser permissions for the re-root and un-root to show up. go into superuser.apk and make it forget z4root. When you relaunch z4root, it should ask you for permissions again and just check allow.
Im havimg the same issues with the unroot i downloaded my copy from megaupload.com and my z4 does not have an unroot button. What can i do pleaze help me rooting was not for me i dont do enough to need it. Also does it remove superuser