I've just updated my 1 year old B75A-G43 to the lastest BIOS via UEFI BIOS M-Flash mode, which is the E7758IMS.AA0 aka version 10.10, my previous BIOS version was 10.4 or 10.3 (E7758IMS.A40), but the problem is when it appeared at 44% of the completion, the PC suddenly shutdown and I let it stay for 40 minutes at the black screen, then it started to reboot with a 3-5 seconds of breathing and power off again. I did remove the CMOS battery for several times too. After all, I think the motherboard itself now is a brick.
So is there any idea for me to reflash/recover the BIOS? Please help. Thank you.