Bad bios flash MSI GT60 2OD. Help me fix my notebook

Please guys help me. I decided to update the bios for my msi gt60 2OD gamer notebook. Downloaded the original AHCI bios file from msi global notebook site link MSI Global GT60 2OD

I did download the file w8_E16F4IMS.50E.zip AHCI Bios then flashed the bios file using the flash utility afuwinx64.exe provided in the folder. I typed at the DOS command window inside windows 8 x64 the command afuwinx64.exe E16F4IMS50E after that the fans of notebook made noise and at the DOS window showed OK DONE for all steps of flashing. Then i shut down windows 8. Power the notebook hit del enter the New flashed bios hit f9 for optimal settings then save changes and restart. After the restart I got permanent black screen, nothing works. Help me recover my bios and make my notebook work again. How can I reflash or do this blind flash procedure i heard about at the site. Please guide me I need my notebook back. I have already tried clear cmos disconecting the cable near fan. Did nkt work. I READ IN FORUNS there is an option to peform a BLIND FLASH renaming the bios to AMIBOOT.ROM and holding some keys during the notebook black screen. Is this possible? What keys should I press and how should I rename the bios files? Please guys help me.

 

Try again remove battery and cmos battery. Make short circuit of 2 pins from cmos battery. Connect battery cable , insert battery and try then.