Guys, regarding the sdcard, what happened to my redmi 3 (non-note) is that when I put in my sdcard 32GB it asked me to format. However I ignored and reboot my phone, and it recognise it and able to use normally without anything needed to be done.

I think miui doesn't support hot-swap sdcard as robust as others, do try to reboot and see what happen before formatting. Not sure about 128GB though, hard to believe smartphone of 2016 doesn't support common formats.

I'm not sure about note 3, but when I choose the colour for Redmi 3, gold indeed looked a little towards pink hence looked a little like rose gold. If note 3 the same I can see why.