we are going to use winphlash.exe from your first download, in command prompt, cd to wherever you extracted the file, and do the following. winphlash.exe /spi /bbl /sd /nochk R0052G7.WPH
Sometimes you have to flash to previous version and back to new version (MOD) bios with Sony..Has this been tried. It may be best to DOS flash at any rate..