How to make transparent only one block in a slide

I have two blocks on a slide. I simply want one block to be faded. I do not know why

 \setbeamercovered{transparent}


does not work.

• Welcome! Please provide a complete compilable example so we can test your setup. – musarithmia Dec 16 '14 at 16:59

This should work:

\documentclass{beamer}
\begin{document}

\begin{frame}{Frame1}
\setbeamercovered{transparent}
Some block on first slide
\end{block}
Some other block
\end{block}
\end{frame}
\end{document}


Some thing like this?

\documentclass{beamer}
\begin{document}

\begin{frame}{Frame1}
\setbeamercovered{transparent}