V12.5.2.0.RJCCNXM is a pilot (staged rollout) MIUI 12.5 update for the Redmi 9 (China, codename lancelot), based on Android 11 and released on Nov 2, 2021. It brings the October 2021 Android security patch.
- Device Redmi 9 (
lancelot) - Region China
- OS MIUI 12.5, Android 11
- Branch Pilot (staged rollout)
- Security patch 2021-10-01
- Build date Oct 17, 2021
- Fingerprint
Redmi/lancelot/lancelot:11/RP1A.200720.011/V12.5.2.0.RJCCNXM:user/release-keys
Download V12.5.2.0.RJCCNXM
| Type | Size | MD5 | |
|---|---|---|---|
| Recovery ROM (.zip, built-in updater) | 2.9 GB | — | Download |
What’s New in V12.5.2.0.RJCCNXM
Other
- Optimized system performance
- Improved system security and stability
Official release notes published by Xiaomi for this build.
How to Install This Update
Download the Recovery ROM, move it to the internal storage and choose Settings → About phone → (tap the OS card) → three dots → Choose update package. This keeps your data, but only works for a China phone on an older version. For a clean install or a region change, flash the Fastboot ROM with Mi Flash (unlocked bootloader required). Step-by-step instructions are on the Redmi 9 firmware page.
Other Redmi 9 China Versions
- Newer: V13.0.5.0.SJCCNXM (Sep 26, 2022)
- All Redmi 9 firmware for every region
Build data: official Xiaomi servers. Firmware list tracked by XiaomiFirmwareUpdater.