@jesse, kindle2 v2.5.3. placed the .EXT3 in the "system" directory. placed update_Savory-0.06.bin in kindle's root. unmounted kindle. menu-->system-->menu-->"update your kindle" greyed out. mounted kindle, removed binary, unmounted kindle, chose menu-->system-->menu-->restart kindle. once in "usb mode", copied binary into root, unmounted kindle, menu-->system-->menu-->"update your kindle" still greyed out. repeated a couple more times.