When I updated the bios on my gigabyte b450m-ds3h after finishing the instalation and restarting there was black screen only while fans were running. Also there is no possibility to turn off the PC by holding the power button, power LED just starts flashing. I am not sure but by a mistake I installed the version which was already installed. I tried to pull out the battery for an hour and reset CMOS and nothing helped. Is there any option to fix?