Redmi Note 9 Pro Max MIUI 12.5.2 Update with September 2021 Security Patch
Redmi Note 9 Pro Max Software Update:
Redmi has released the MIUI Update 12.5.2 for Redmi Note 9 Pro Max which also brings the September 2021 Security Patch. Has brought noticeable smoothness to the UI and system and performance.
Xiaomi Redmi Note 9 Pro Max was released on 12th of May 2020 with Android 10 with MIUI 12.
Redmi Note 9 Pro Max received the major Android update to Android 11 with only a single MIUI update so far and hence we can expect its MIUI 13 and 14 respectively.
Update Details
- Device: Redmi Note 9 Pro Max
- Android: Android 11
- MIUI: MIUI 12.5.2
- Build number: 12.5.2.0.RJXINXM
- Update type: Stable update
- Update size: 791MB
- Region: India
- Android Security Patch: September 2021

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How long will it get updates?
The Xiaomi Redmi Note 9 Pro Max came with an Android 10 out-of-the-box and got upgraded to Android 11. Therefore, it is eligible for the upcoming Android 12 update.
Hence, the Android 12 will most probably be the last major OS update on this device.
- Out-of-the-box>> Android 10
- First Update>> Android 11[Stable]
- Second Update>> Android 12 [Eligible] [Last Update] [Unconfirmed]
How to update your Xiaomi device with the latest update?
The Redmi Note 9 Pro MIUI 12.5.2 stable update has begun rolling out and it will reach users soon.
Once the update is available on your device, you can head over to Settings >> About Phone >> Software Update section to update your Xiaomi device with the latest update.
Also read: More from Xiaomi
- Redmi Note 10 MIUI 12.5 Update: Stable update released in India
- Redmi 9 Prime Android 11 with MIUI 12.5 stable update rolled out with August 2021 Security Patch
- Redmi Note 8T Android 11 Update: Stable update released
- How to downgrade MIUI Version of Any Xiaomi Phone in 2021
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