ตามนี้เลย
http://miuiandroid.com/roms/miui-development-roms/

System:

Optimise the DHD, Desire Z, Desire S and Incredible S calling, ringtones, system issues with low volume
Wi-Fi performance optimisation for Motorola Defy Fix DHD, Desire Z, Desire S and Incredible S models cannot use micro-channel audio
Fix DHD, Desire Z, Desire S and Incredible S models sound card related issues
Fix DHD, Desire Z, Desire S and Incredible S models non-radio interface to adjust sound, mute system problems

Phone:

Fix problems with incoming call sound cannot be heard Fix DHD, Desire Z, Desire S and Incredible S models problems with headset audio during calls

Lockscreen, Status bar and notifications:

Unlock the lockscreen fix, lockscreen does not show the correct details

Themes:

Added support for searching online themes Fix in some cases the tone is not correctly applied or not applied at all Fix problems after wiping data, ringtones are displayed in the incorrect order Fix unstable network, listening to online audio playback (previews), error status problems

Settings:

Fix problems with system setup and use of the search system, entering a search without any keyword causes some issues

FM Radio:

Fix Motorola Defy FM radio volume instability