Apollo Lake Aptio unlock request

[arthurious]

Cheers folks! I'm a newbie to this forum and Bios modding, so please go easy on me 


Some time ago got myself a yoga ultrabook straight from china called Voyo Vbook 3 Pro. Not the most famous brand, lol. But it has locked Bios based on AMI Aptio (V supposedly)
   
What it showing at this point is boot config and system info, that's pretty much it... 
   

I also purchased 8Gb kit of DDR3 1866 ram from Crucial and therefore would like it to work at the noted frequency. Cuz now it's only running at 1600mhz with only 1 stick from that kit (putting second one in results some weird visual glitches on the screen)

The chipset definitely DOES support DDR3 1866mhz memory, according to Intel specsheet: so it's nothing but the motherboard artificially limiting those speeds


Kindly asking you gurus of the site to help me do this 

P.s. tried to attach the rom file of the bios saved via Aptio V afu, but its weight 8megs instead of 2 allowed?

[arthurious]

Here's the current BIOS, need to unlock hidden settings

So does anybody have clue how to do that?