How to update my BIOS on a GIGABYTE 78LMT USB3?

[Lineland]

Hello. I just built myself my first PC with a GIGABYTE 78LMT USB3, an AMD FX 8300, an LG Optical Drive, a Samsung Hard Drive, a Zotac GeForce 1050, and an EVGA 500W Power Supply. So, I recently just built my computer and tried to update my BIOS, but it won't read my flash drive. I've tried reformatting the usb stick multiple times, ans still nothing. Any ideas? (and yes, i've read the manual.)

 

[Dark Lord of Tech]

Why are you updating the BIOS , DON'T DO IT UNLESS YOU REALLY NEED TO.