Since I'm new I can't post the link but it's on rwilco12.com, and the tutorial for SPHD710 root.
Thats the tutorial I followed.
Hi, I've tried this tutorial to root my Galaxy S2 SPH-D710. I can access the recovery menu and get all the root options, but superuser does not give root permissions, I'm really new to this. Does this mean the root did not take?