Got it fixed at a local shop, they said they tried multiple times it didn't work so they tinkered another board's BIOS and flashed. Motherboard information I see now in the system is of a different board. I don't know what kinda issue this will bring in the future. They think it won't as it's just a next version of the same board. For now it's working.
Is that the end? NO. Now have issue with VGA port, it's not working. Don't know when it started, after I flashed or during my attempts to fix the issue by plugging/unplugging and all or during transit to/fro repair shop or at repair shop? Don't know
It started with one, now I got another issue to deal with. Even after repeated asking they aren't ready to given an estimate for this VGA port issue without checking the board (I found the issue after I came back home and connected my monitors. We checked only HDMI at repair shop), I am guessing it would be more. I am not in mood to pack the whole setup and carry it again, and not ready to spend more as I was already charged more than what I hoped they would charge for BIOS flashing. So I am thinking about buying DVI HDMI/VGA adapter and use (hope DVI is working, never used it before).
BTW, I am not complaining/blaming the repair shop. If I ever need help with system in the future, they are one I would go to.