The same XML is used in MI2 thats used in those phones. I wonder if there is a chance you are still flashing weeklys from all the way back to like 2.9.13, when we implemented this google/baidu change. It required a cache wipe of browser to fix.
[Contacts]
New - When searching for contacts with more than one number via T9 dialer, “Recent tag” will be shown for recently used numbers
New - When setting voicemail in the contact details, a confirmation dialog box will pop up
Optimization - After entering contact details from the search...
1) They share the same /data partition. That means apps installed work on both. They have different /system, which is what seperates them.
2) You need to be rooted, then just rm -rf from /system/app
2a) Our ROMs are rooted. Must not be running a MIUIAndroid ROM
3) i.xiaomi.com takes 5ish...
Its a port (Unofficial), and every week that passes makes that phone older, which makes the odds of it showing up smaller every week. Enjoy the version you have and just hope for that tiny bit of luck that'll it'll come back.