Hello!
I’ve tried it myself with small .ffs insertion and @BIOS utility by Gigabyte but it still can’t even recognize my JEYI M.2 NVME SSD to PCIe 4.0 x1 Adapter Card for 2280 with installed Samsung SSD at PCIe x1 slot
So… maybe i did something wrong (I’ve used the Guide from this forum) and wanna request for bios to flash it with q-flash