A300 PSAGCE Insyde

Hello.

I was trying to flash my BIOS but something went wrong and my computer won't boot up.

I have a Toshiba Satellite A300 PSAGCE with Insyde BIOS. I'm trying to flash again but i see so many options i don't know what to do.

Some people said the use win+F, others FN+F. There are someone that use a FD file, others a Bin.. I dont know what to do.

Can someone give a tutorial so i can follow or give some hints for what i can do?

I've downloaded the update file from toshiba that cames in a EXE file. I've unzip it and i got a P****.FD file among others.

I have a 2GB usb drive. The computer won't boot up. What can i do?

Thank you for any help..