The much-awaited MIUI 6 Stable version is finally released and available for Xiaomi Mi 3 and Mi 4. However, it should be noted that this is China ROM for China Mi 3 and Mi 4, the global ROM will be released later. Though, the currently available MIUI 6 stable isn’t a global ROM but interested Mi 3 users in India can flash it even if they’re outside China. The difference would be the presence of some Chinese elements. MIUI 6 is significantly different in terms of looks as it features an entirely revamped UI and several new features. Indian users with Mi 3 running MIUI 5, can manually update to MIUI 6 stable version using our previous guide.
Installing the MIUI 6 Stable ROM v6.1.2.0.KXDCNBJ Update Directly -
Note: Flashing a newer version of MIUI ROM doesn’t requires to wipe data, but flashing an older one does. So, as you’re updating to a newer version wiping is not needed.
1. Download the MIUI 6 v6.1.2.0.KXDCNBJ Stable ROM full package. (This ROM is for China but works with Indian Mi 3 as well.) or Download Stable MIUI 6 ROM for Mi 4.
2. Place the downloaded ROM file in the downloaded_rom folder on internal storage.
3. Open Updater app, press the Menu button. Then tap on ‘Select update package’ option and choose the downloaded ROM (miui_MI3WMI4W_V6.1.2.0.KXDCNBJ_a5a8c41552_4.4.zip). Click on the ‘Update’ option, wait for the update to complete and then Reboot to finish.
Voila! After rebooting your Mi 3 should load up with MIUI 6’s entirely new flat user interface.
Note: Be patient after reboot as Mi 3 will take a while to boot up.
In case, you’re experiencing errors or application force close issues with the above method then it’s recommended to use Method #2 instead, described here.
Enjoy MIUI v6 Stable! 
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