Trying to flash eMMC now. I've done a normal flash and now trying to move onto the next stage (Flashing Vanilla Image) and I keep getting:

Image 'mmc', size 241163 kB
Version RX-51_2009SE_1.2009.41-1.VANILLA
USB device found found at bus bus-0, device address \\.\libusb0-0001--0x0421-0x0
1c8.
Raw data transfer EP found at EP2.
Using flashing protocol Mk II.
SU_GET_UPDATE_STATUS_REQ terminated with error code 1.

And then the screen on my n900 gets stuck on the 'Loading dots'.

Help??