Updating UEFI firmware Braswell

I am a bit of a novice. I already have a UEFI firmware, installed on Acer R11 CYAN, with Fedora running with many freezing issues. I guess maybe updating the firmware will resolve the issue… But I cannot find a guide on how to update. Any help would be appreciated.

You update the same way you install your firmware, with firmware-util.sh. It recognizes that you already have the UEFI firmware, and recognizes if you have an older FW running.

Thank you for the quick reply,
So I just use that commands on the Linux terminal?

Yes. The script will give you an option to update firmware.