[Request] HP Z210 BIOS - NVMe mod and how to flash

I managed to modify HP Z210 bios. See attached .zip bundle of original and modded bios.
Unfortunately I am not able to flash with HPQFlash or BIOS integrated flash utility. Can someone please check modded bios and give me advice on method/program I should use to flash modded bios.
Thank you in advance!

EDIT by Fernando: Thread title specified

J51_0155.zip (4.98 MB)

J51_0155mod.zip (4.99 MB)

no luck so far ?