Lack Of Manual Shutter Speed Support

[nlacsoft]

I'm wondering why Redmi 3 (Pro) doesn't support it (and more manual camera settings being part of Camera2 API).
What is missing for that? Hardware? Software (from MIUI)? Maybe just some property file settings?

I've digged forum posts about it, those were about Redmi Note models not about Redmi 3 but tried the hacks anyway eg by en.miui.com/thread-314048-1-1.html: added extra row to build.properties, wiped dalvik cache, reboot etc but didn't got any extra feature.

Any ideas?

 

[nlacsoft]

Hmm did i ask something completely stupid or just too hard for either the experts?