% $Id: % \subsubsection{Installation} \begin{enumerate} \item Download \opt{samsungyh820}{\url{http://download.rockbox.org/bootloader/samsung/yh820/FW_YH820.mi4}} \opt{samsungyh920}{\url{http://download.rockbox.org/bootloader/samsung/yh920/PP5020.mi4}} \opt{samsungyh925}{\url{http://download.rockbox.org/bootloader/samsung/yh925/FW_YH925.mi4}} \item Connect your \playertype{} to the computer using UMS mode. \item Rename the \originalfirmwarefilename{} file to \fname{OF.mi4} in the \fname{System} directory on your \playertype{}. \note{You should keep a safe backup of this file for use if you ever wish to switch back to the \playerman{} firmware.} \note{If you cannot see the \fname{System} directory, you will need to make sure your operating system is configured to show hidden files and directories.} \item Copy the \originalfirmwarefilename{} file you downloaded to the \fname{System} directory on your \dap{}. \end{enumerate}