root or ICS , which first ?

[jigga]

my tab is motorola xoom wifi 3.1
i dont know what to do first , root my tab or update it to ICS.
plz give me some advice coz i'm new to android things

 

[jigga]

i root my motorola xoom wifi 3.1 according to the steps from xda-developers [GUIDE][WIFI ONLY] How to Root the Xoom from Stock 3.1 - xda-developers
after step 5. i reboot the system like they said
but my xoom didnt boot & it freeze with motoloa logo
how can i correct this ?