How to flash official global rom

[nish.icon]

My phone is Redmi Note 4 Nikel, Bootloader Unlock, not rooted, with latest beta eu rom. Please help me on how to flash Official Global Stable ROM.

 

[nish.icon]

http://en.miui.com/forum.php?mod=viewthread&tid=371349&page=1&extra=#pid20759399
http://en.miui.com/thread-370620-1-1.html

Sadly i don't have computer to begin with. Is there any other options? Thank you by the way.