The Chinese OEM Xiaomi started pushing MIUI 12.0.1.0 Global Stable ROM for Mi Mix 2 with software version V12.0.1.0.PDEMIXM. This update is still based on Android 9.0 Pie. If you have not received the update, then manually you can download and install the update by following the guide below along with download links and requirements.
The new MIUI 12.0.1.0 update (Android 9.0 Pie) for Mi Mix 2 is rolling out globally via OTA in a phased manner and will take a few days to appear on all the units. It brings the February 2020 Android Security Patch that fixes bugs and improves system security. Additionally, the update brings app vault and security optimization. If you want to install this update on your Mi Mix 2 (Codename: chiron) then you can either check for OTA updates or manually flash the firmware from the full step-by-step guide below.
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Manually Check OTA Updates
Keep in mind that all the incremental OTA update roll-out always hit a limited number of units initially. Then the broader roll-out process starts and takes some time to arrive on all the units completely. So, it’s better to check for OTA updates manually to get notified.
In order to do that, go to the phone Settings > About Phone > Software update. Additionally, you can perform this task via the Software Updater app directly. If the software version V12.0.1.0.PDEMIXM is available, you can grab it.