A couple of months back, Xiaomi surprised Redmi Note 5 owners by releasing Android 8.1 Oreo nightly build. Some tech-savvy users were able to install the leaked nightly build on their device and enjoyed features like Dual VoLTE, PIP (picture in picture), and many new value added features.

If you have been waiting for the stable Android Oreo 8.1 update for your Redmi Note 5 Pro, check for the new MIUI 9.5.11.0 update by going to Settings > About phone > check system update. If update found, just update your phone. If you cannot wait for the OTA, you can download and flash the MIUI 9 Global Stable V9.5.11.0.OEIMIFA file manually on your device. Inexperienced users should not try this method, as it may break your device. Installation Instruction (Recovery ROM)

  1. Download MIUI 9 Global Stable V9.5.11.0.OEIMIFA .zip files from here and save it to your phone’s root of internal storage (do not put inside a folder)
  2. Launch Updater app and tap the menu (3 dots). In the menu, tap ‘Reboot to recovery mode‘.
  3. This will reboot your phone into Recovery mode.
  4. In Recovery, select ‘Install update.zip to System’ (use Vol up & Vol down buttons) and press Power button to select it.
  5. This will automatically detect the update.zip file and start installing the ROM. Once done, your phone will reboot automatically.