Hi
is there anyone who can help me to reset my laptop's bios,
actually i tried to flash memory but i could not complet process and now i can't see anything on screen at all( just fan sound)
is there anyone can help me plz

Step away from the PC. Take a deep breath. Take it to the nearest repair shop, it likely needs a new mainboard at this stage.
Flashing the BIOS has real risks, only to be attempted as a last resort.
Resetting the BIOS is different, that involved jumpering the CMOS battery.

What brand/model is this laptop?

when you started to flash the BIOS were you given the chance to save the exiting BIOS?
if so did you do it? (hopefully to a floppy)

Clear the BIOS if possible.