How to Downgrade miui rom?


Jan 31, 2015
3
0
11
#1
Hi.
How i go back (downgrade) to 5.1.9 aries ???
I think this is great rom for me until now without problems
Now i have 5.1.30 and i have problem with WiFi, Explorer.
And i don't like a lots of other futures of new beta rom.

Sorry for my English but it's not my native language.

mi2s 16Gb v6

Thanks in advance