Error updating bios
It is essential that you do it mistake free if you still want to be able to use your computer.For the purposes of this article I am going to assume that you understand the risks of flashing your BIOS and have a good reason for upgrading your existing BIOS.Chances are you're doing something wrong, or have a bad usb thumb drive. Clear your bios, boot, then load defaults, and try to flash the latest bios.If that fails, return it the motherboard to the place you purchased it and exchange it, or RMA the board through Gigabyte. I've tried both with default settings, and some changed. (The files were download and extracted- file size is 16,384kb)I went into Q-Flash Manager and both F2 and F3g gave the error "Oemld Mismatch."In Q-Flash, I saved the F1 BIOS and was able to flash with that Bios.Also, make sure there isn't a jumper on the clear bios jumper.
If the BIOS is corrupted, the motherboard will no longer be able to POST but that does not mean all hope is lost.
You can also get pertinent information from the initial POST screen.
The first line in the upper left portion of the screen shows the BIOS maker and version.
Looking at your pictures, there is a progress bar showing 100%.
So the mismatch occurs after flashing is complete, not before when you select the bios file. It may not be writing to the bios correctly and when the bios is reread, some sort of checksum fails.