this has only been tested on the Z580C model and ONLY FOR LOLLIPOP.
finally got root on my zenpad s 8. i can't say how this'll affect updates in the future, but this is done after taking the first update out of the box as of 7-19-15.
pretty much all you do is follow the info here: http://forum.xda-developers.com/andr...p-cwm-t2975096
grab the file here: http://forum.xda-developers.com/show...&postcount=352
download intel usb drivers here: https://software.intel.com/en-us/and...ndroid-devices
download the latest chainfire su: https://download.chainfire.eu/696/Su...erSU-v2.46.zip and copy to your device or sd card
make sure your android sdk is up-to-date.
if you happened to already install the device and the usb adb device has the yellow warning on it, just updated the device driver after installing the intel drivers. select brows my computer... let me pick... scroll down to intel and select adb device.
next verify that adb recognizes your device -> adb devices
unzip IntelAndroid-FBRL-05-16-2015-PTR and run launcher.bat
if your device is detected select T2 and press enter.
wait a good while as it reboots into recovery. you'll see an error on the launcher bat about failing b/c of too many links or something, just ignore. you device will restart and have a buncha lines of text. after about 3-5min it'll boot into CWM. install su zip and reboot (didn't need to fix su at the propt).
you may want to do a nandroid before flashing SU. i skipped it so i can't say whether it'll be successful or not, but it's better to be i case something goes wrong. i'm still w/in my return period :P
there you go. enjoy an adfree device or what ever you want to do with your rooted tablet!
stock image available here: http://dlcdnet.asus.com/pub/ASUS/Eee...3.8.0-user.zip