Help with BIOS Settings Aspire F5 573 723q

Dranzule

Greetings, everyone. I have an Acer Aspire F5 573 723q(i7 6500u, Intel HD 520) and have achieved to unlock the advanced BIOS settings. After messing a bit with settings, I realized that when going into Power > Power & Performance > GT - Power Management Control my bios just... freezes. The screen doesn't go black or anything, it just... stops. As I was trying to mess with TDP limits I had updated from BIOS version 1.12 to 1.27, and coincidentally tried to check the tab again out of curiosity, but the same issue appears. 
As I use an external keyboard which has LED lights indicating whether any of the Lock functions are active, I noticed that the lights would die down(meaning the keyboard got disconnected), but pressing the internal keyboard's lock keys would make them shine, which makes me think the BIOS still takes input, but is frozen and shows no output.

Could someone guide me into the right direction to solve this issue? And if not, could you point out where should I look?

Disclaimer: I'm aware of the dangers of using advanced BIOS settings, as they vary from laptop to laptop, can be messy, and can brick your system if not used properly. Laptop is out of warranty, so I was just curious.

Thanks for the help.

JackE

>>>have achieved to unlock the advanced BIOS settings.>>>

What EXACTLY do you mean by this? In other words,  EXACTLY how did you unlock the advanced tab settings?

Dranzule

I've achieved access to the Advanced/Power menus, which are hidden by default. This can be triggered by booting while holding FN + Tab and entering the BIOS.

JackE

Have you been unable to undo the BIOS changes made either inside 1.27 menu itself or by reinstalling 1.12 or 1.27?