Yes, I can describe the failure that happened when I attempted the Automated installation.
I basically followed the rockbox-sansafuzeplus.pdf at 2.2.1 for Automated Installation, attempting to use the instructions at:
http://www.rockbox.org/wiki/SansaFuzePlusPort .
I downloaded:
http://download.rockbox.org/rbutil/win32/RockboxUtility-v1.2.14.zip and extracted out the RockboxUtility.exe for use with Windows.
I downloaded and extracted the original firmware for the Fuze from:
http://mp3support.sandisk.com/firmware/fuzeplus/fuzeplus02.38.06.zip and extracted out the firmware.sb file .
I attached my Sansa Fuze+ via USB MSC mode to my computer. After starting up the RockboxUtility program -- I identified my SansaFuze+ location to the RockboxUtility.
I went to the "Installation" tab, and clicked on the button to "Install the bootloader". I selected my firmware.sb file when prompted.
The installation starts... I see the following messages in a dialog box -- Downloading bootloader file.... Download finished (cache used).... Patching file...
RockboxUtility stops and fails saying in in another Dialog box that "RockboxUtility.exe has stopped working".
I am using Windows 7 - 64 bit if that might be significant .
So I decide to attempt a manual installation -- but am stopped when I can not find the mkimxboot program.