[REQUEST] TongFang PFxNU1x BIOS unlock

Good evening everyone,

I have had this small laptop (also known as MechRevo S2 Air, Mechrevo CODE01…) for quite a while already and I just realized that something must be wrong with the RAM timings or something like that, because I also have another laptop with the same R7-4800H CPU where its Vega 7 iGPU performance is over 20% faster using the same exact RAM modules easily.
Please I need the help of someone skilled enough to fully unlock the BIOS of this laptop so I can play around with the settings.
I do have a CH341a with a SOIC8 clip and I’m pretty used to it if something goes wrong in the process.

I already did a minor mod and changed the boot splash image, otherwise this BIOS is the one that I’m using right now.
PF4NU1 Stock BIOS Link