I find it hard to believe, too. But I also did not test/tried it myself. So ... That is true, BUT ... ... please try it again with IMHO "correct" way of flashing: flasher-3.5.exe -F RX-51_2009SE_10.2010.13-2.VANILLA_PR_EMMC_MR0_ARM.bin -f flasher-3.5.exe -F RX-51_2009SE_20.2010.36-2_PR_COMBINED_MR0_ARM.bin -f -R first eMMC, then rootFS. I am not sure why and where I read, but it may/seems to be necessary to flash combined before eMMC sometimes. But always flash rootFS after eMMC. That's the way I was always successful. So please try again ...