Question [Q] Xiaomi Redmi Root

Hi.

I have a Redmi (HM 1W). But I just can't seem to root it.
There is a Security application that has an option to enable root, but it is grayed out: i.imgur.com / zkMqNyZ.png

I tried to install TWRP. No success. Root Checker says it is not yet rooted.

Please help. Any suggestions are welcome

Thanks!