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 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37  % $Id$ % \fixme{This information is new and might contain errors. Please \emph{always} check out the installation page in the wiki at \wikilink{SansaE200Install} and the troubleshooting page at \wikilink{SansaE200TroubleShooting} first. If you have any doubts about installation, \emph{stop now!} Errors during the installation might render your player useless!} The installation of the bootloader is the most critical part of the installation. Please make sure to read the instructions completely first before doing any installation step. You \emph{need} to prepare your \dap{} for dual boot as explained below as you otherwise \emph{will not} have USB access to your player. \begin{enumerate} \item Save a backup copy of your original firmware onto your computer's hard drive. You can obtain a firmware file from \url{http://daniel.haxx.se/sansa/mi4.html}, another way to obtain the file is to intercept the file during the firmware upgrade. \item Install a version of the mi4code program on your system. You can get a windows binary from \url{http://daniel.haxx.se/sansa/mi4code.html}. \item Decrypt the mi4 firmware file with the following command \begin{code} mi4code decrypt -s SKU_E-PP5022.mi4 OF.bin \end{code} \item Copy the decrypted original firmware file \fname{OF.bin} to the \fname{/SYSTEM} folder on your \dap{}. (This folder might be hidden). \item Download the Rockbox bootloader from \url{http://download.rockbox.org/bootloader/sandisk-sansa/}. \item Copy the bootloader you just downloaded to the root directory of your \dap{}. \item Safely remove your \dap{} from the computer and then disconnect the USB cable. This will reboot the \dap{}, then it will install the Rockbox bootloader and reboot again into Rockbox. \end{enumerate}