MIUI 9, the next major iteration of Xiaomi’s customized Android OS is in its beta testing phase now. MIUI 9 China beta ROM 7.8.14 is now available for all eligible Xiaomi devices. If you are excited to try out the lightning fast MIUI 9 on your device, you can download and install it right now. MIUI 9 China Beta ROM 7.8.14 (fastboot and recovery) is now available for all supported devices, such as Mi 5, Mi Mix, Redmi 4X, Mi Note, Mi 4S, etc.
The all new MIUI 9 features Smart Assistant, Global image search, Smart app Launcher, Split Screen, Notification filter, Home screen customization, new themes and much more. If you are excited to try all the new features right now, here is how to install the MIUI 9 China Beta ROM 7.8.14 on your device.
Before head over to the installation guide, please note that the installation process requires unlocked bootloader (for flashing fastboot ROM) or your device should be running on MIUI 8 China Beta ROM (for flashing recovery ROM).
Note: The files are China ROM (not Global), but experienced users can change it to Global ROM.
How to Install MIUI 9 beta ROM 7.8.14 Fastboot ROM
Note: This is a beta build of MIUI 9, which means it is unstable and includes several bugs. Also, as this a China build it will not include Google Apps.
1. MIUI 9 beta ROM 7.8.14 fastboot image from source here.
2. After downloading the fastboot ROM (with .tgz extension), follow this installation guide.
How to Globalize the MIUI 9 China ROM
The process requires root access on the phone, as you need to edit a system file (build.prop).
1. After installing MIUI 9, install TWRP recovery and then root it by using Magisk or SuperSU.
2. Open build.prop file ( you may use Build.Prop editor or a Root file explorer) and add below lines at the end of build.prop file:
In the codes above you can see ‘it’ and ‘IT’. Both are for region Italy. You should change them for your region accordingly.
Also, you will see ‘scorpio_mam_global’. ‘Scorpio’ is for Mi Note 2. It should change to your device. For example, Gemini for Mi 5, natrium for Mi 5s Plus, and so on.
Once done, reboot your phone and all the Chinese content from system apps like music, browser, etc. will completely disappear. (Source – XDA)