Pc not booting after bios update

While surfing on asus website i accidently installed bios update not realising that every bios update is not required. After installing through asus app it restarted. To my horror nothing is showing on the screen(no boot screen). Blank screen with green led. Is this repairable or the motherboard is rendered faulty. I have already done what people on other sites are saying as a solution i.e. unlugging battery chord nd pressing power button to reset cmos and other things. So, if anyone can help me it would be highly appreciated.