I wasn't able to get root access using the same method as you did. SU installs but not correctly. I had to uninstall it. In the command prompts I get some errors regarding where SU is installing and it does say success, but root is not obtained. You are SURE that you have root correct? Just asking for a confirm, but not doubting you got it if you say you did. Looks like we are the pioneers here.
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