I manually added the su 3.1.3
after all was said and done with following the first post All was good till
I Added the su 3.1.3 manually then when I rebooted it was denying superuser rights
so I manualy deleted the new su and when through the whole 9 again and never turned off the wifi ( that's what I think happened) so no superuser / root any more
but the phone works other wise..
in the wifi settings it is always trying to turn on .. and after a few attempts
just under it it would display "wifi on" but it says "error"
the img meaning a system image I can use to restore it to factory files and permissions via my computer..
that link you referred to what su would be used in our case ..?
ARM devices (2.0 – 4.1)
x86 devices (2.0 – 4.1)