Currently, Aeroevans bfs .7 only kernal works with MIUI. I've been using it for a couple months now. Depending on your Recovery, i would wipe all partitions. Note, its why i recommend 4ext recovery because it offers a lot more options. Anyways, just download the new update. 1.12.2
http://roms.miui.us/vivow/MIUI.us_vi...d_buildbot.zip and then download aeroevans .7 bfs kernal
Multiupload.com - upload your files to multiple file hosting sites!. Just make sure you wipe everything, factory reset, cache, advanced dalvick-cache. Afterwards, flash rom and then flash kernal. I recommend using the MIUI backup tool to back up apps and wifi settings before following my instructions.