\subsubsection{Installation} \begin{enumerate} \item Download \opt{iriverh10}{\url{http://download.rockbox.org/bootloader/iriver/H10_20GC.mi4}} \opt{iriverh10_5gb}{ \begin{itemize} \item \url{http://download.rockbox.org/bootloader/iriver/H10.mi4} if your \dap{} is UMS or \item \url{http://download.rockbox.org/bootloader/iriver/H10_5GB-MTP/H10.mi4} if it is MTP. \end{itemize}} \item Connect your \playertype{} to the computer using UMS mode and the UMS trick% \opt{iriverh10_5gb}{ if necessary}. \item Rename the \opt{iriverh10}{\fname{H10\_20GC.mi4}}\opt{iriverh10_5gb}{\fname{H10.mi4}} file to \fname{OF.mi4} in the \fname{System} directory on your \playertype{}. \opt{iriverh10_5gb}{\note{If you have a Pure model \playertype{} (which does not have an FM radio) it is possible that this file will be called \fname{H10EMP.mi4} instead. If so, rename the \fname{H10.mi4} you downloaded in step 1 to \fname{H10EMP.mi4}.}} \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 \opt{iriverh10}{\fname{H10\_20GC.mi4}}\opt{iriverh10_5gb}{\fname{H10.mi4} (or \fname{H10EMP.mi4} if you have a \playertype{} Pure)} file you downloaded to the System directory on your \dap{}. \end{enumerate}