I found that one at xda developers (http://forum.xda-developers.com/showthread.php?t=1857399), but it's not on this site under 2.10.12's work (http://miuiandroid.com/community/threads/2-10-12.18461/).
2.10.12 is a bit buggy (with obvious things, Facebook app won't load (you can access web...