Thanks a lot to all members of mydigitallife and especially to Loxxx Finally, I have updated my Samsung R710 FS07 bios to modified with slic 2.1. The main problem was in Win 7 64bit OS cause flasher didn't work in it. So, using advise of Loxxx, I installed hiren's bootcd on usb flash, and flashed my bios from mini xp. Bye all.