Why My SATELLITE A660-13Q Froze during bios flash and won't boot?

Hi i was working on my TOSHIBA SATELLITE A660-13Q and it was freezing then after i restarted the machine it gave me a message saying that ( Your computer has recover from a fatal error check for solution online) and after that a message pop up and said click to update your bios and i did that and downloaded the bios and during installation the computer froze and i forcefully turn it off and turning it on again it won't boot up. when i press power button the fan spins for about 10seconds and all the indicators led will light up and the computer goes back off and u don't see anything on the screen. when it is on ac adapter the charging light stays on. i have reseated the battery and the ram. i have also tried powering it on without battery and i used only ac adapter but still it will just blink lights with a black screen. could this be that my bios is completely damage? please help.