Boot Sequence - File System not found - No bootable devices found

Hi,

I have laptop Dell Latitude 5300, with BIOS ver: 1.6.0. 

SSD M.2 Disk has been replaced and now i now i have only this blank disk which is recognized and visible in Bios Device Information. In Bios\Boot Sequence\ i see only Onboard NIC, when trying to ADD BOOT OPTION i get: FILE SYSTEM NOT FOUND !  How can I add USB to boot sequence ?  In BIOS 1.6.0 there is no Advanced Boot Option and choice between Legacy and UEFI. Onboard diagnosis is sucessful.

Checking media presence : No bootable devices found 

Please advise next steps