NorwegianLabel, on 06 January 2013 - 02:18 AM, said:
Then how can I not use those codecs '. It would be nice if you could explain how to fix it. Btw thank you for your response.
He meant not playing videos with these codecs. Ganster tried to fix this, but he couldn't (meaning it's not easy to fix). We should be happy it works at all and it's normal to have some minor bugs, that's how things are for such phones.
ag0n, on 06 January 2013 - 03:25 AM, said:
I am sorry if i am asking a already answered question, but can someone tell me how to use s2e?
It's my first time using the app and i really need to get some space while getting the mobile stable / problem-less. Is there any tutorial (with some theory so i can really understand what everything does).
It's commendable you want to understand how it works.

But this is not the correct place to ask. (Google search is your friend).
Official XDA thread for S2E. Also the process was explained in more detail in the official FAQ for Link2SD (similar program) - just to understand how it works. Or just search with Google.