Avita Pura 14 NS14A6 modded bios won't flash

I made a modded bios using AMIBCP to unlock the advanced menu and if I flash it through AFUWIN it says “secure flash rom verify fail”. If I check the recovery box when I flash it, it boots to the bios then says “ROM image not loaded ROM image update denied”.
Can I force flash it without a programmer?
I found some ways but they are all for intel cpus and I have a ryzen 5 3500u.

hello Share your BIOS inventory. Have you tried the /GAN command? If so, programmers are necessary.

I tried using AFUWIN 3.05 and /gan isn’t valid
Here is the link to the modified bios:
https://anonfiles.com/761d0e8eya/bios_rom
Original bios: (dumped with AFUWIN)
https://anonfiles.com/Xf170281yc/original_bios_rom

Yes, this requires a programmer to write. I got an Avita model the other day. With a 4500U processor. I also ordered the proper CH341A. So I’ll try to unlock it in the next few days.