How To Install AOSP Android 8.0 Oreo Custom ROM On Xiaomi Mi 3 and Mi 4

Google recently officially announced the latest Android OS called Android 8.0 Oreo for Nexus 5X and Google Pixel devices. The good news is that now you can update Xiaomi Mi 3 and Mi 4 to Android 8.0 Oreo by installing an unofficial AOSP custom ROM. All credit goes to XDA Senior Member vasishath to build this amazing Android Oreo AOSP 8.0 ROM for Xiaomi Mi 3 and Mi 4. This latest custom firmware comes with many new features and customizations. Also, the Android 8.0 Oreo custom firmware is stable enough to use as a daily driver. This is an unofficial build of AOSP, Xiaomi has not officially announced it so you may face some minor bugs but don’t worry they will be fixed soon. Make sure that your device is rooted and installed with the latest version of a custom recovery like TWRP or CWM (ClockworkMod) to flash this AOSP custom ROM on Xiaomi Mi 3 and Mi 4.

By following this simple step by step guide, you can update your Xiaomi Mi 3 and Mi 4 to AOSP Android 8.0 Oreo custom ROM. This latest custom firmware brings tonnes of new features, improvements and enhances your system performance. The good news is that you can get the experience of Android 8.0 Oreo on Xiaomi Mi 3 and Mi 4. Before proceeding, don’t forget to take a full backup of all your valuable data. If you are interested in installing the AOSP Android 8.0 Oreo custom ROM on your Xiaomi Mi 3 and Mi 4 then go ahead and follow the given steps.

Xiaomi Mi 3 and Mi 4 updated Android 8.0 Oreo AOSP ROM


The AOSP Android 8.0 Oreo custom ROM and the instructions given in this guide can be used only for the Xiaomi Mi 3 and Mi 4. Check the model number of your Xiaomi Mi 3 and Mi 4 from Settings > About Phone.

Warning: will not be held responsible for any kind of damage occurred to your Xiaomi Mi 3 and Mi 4 during or after the installation of AOSP Android 8.0 Oreo ROM. Proceed at your own risk.


  • Create a proper backup of all your existing data and settings on the phone before proceeding to the installation guide using a recommended custom recovery.
  • Enable USB Debugging Mode on the Xiaomi Mi 3 and Mi 4 by navigating to Settings > Developer Options.
  • Verify that you’ve correctly installed the Xiaomi Mi 3 and Mi 4 USB Drivers on the PC.
  • The Xiaomi Mi 3 and Mi 4 should be rooted with the latest version of a custom recovery like CWM or TWRP installed.
  • The bootloader of your 4X must be unlocked.
  • Make sure that the battery level of the Xiaomi Mi 3 and Mi 4 is at least above 80% before going ahead.

Required Files:

Steps to Flash Android 8.0 Oreo AOSP ROM on Xiaomi Mi 3 and Mi 4:

Step No 1: – First, download AOSP Android 8.0 Oreo custom ROM for Xiaomi Mi 3 and Mi 4 on the desktop of the PC.

Step No 2: – Plug your device to the PC using its USB data cable and mount its USB memory storage.

Step No 3: – Transfer AOSP Android 8.0 Oreo ROM .zip file which you’ve already downloaded from the above links to the root folder of your SD card on the phone.

Step No 4: – Unplug the Xiaomi Mi 3 and Mi 4 from the PC and power it OFF to boot into Recovery Mode.

Step No 5: – Power ON the device while pressing and holding Volume Up + Home + Power buttons at the same time to enter into Recovery Mode.

Step No 6: – While your device is now in CWM Recovery, perform wipe data/factory reset, wipe cache partition and wipe dalvik cache also by navigating to Advanced > Wipe Dalvik Cache.

Note: – wipe dalvik cache will help you to prevent boot loops and other errors while ROM installation.

Step No 7: – Go back to the main Recovery Menu and choose to install zip from SD card → choose zip from sd card.

Step No 8: – Navigate to the AOSP Android 8.0 Oreo custom ROM .zip file which you’ve already transferred to the SD card of your device previously. Select the ROM .zip file using the Power button and confirm the installation to begin.

9: – Navigate to +++++Go Back+++++ once the installation is completed. From Recovery Menu, reboot your device by selecting reboot system now.

Your Xiaomi Mi 3 and Mi 4 will be rebooted and may take about 4 to 5 minutes to boot for the first time after installation.

Done! You’ve successfully updated Xiaomi Mi 3 and Mi 4 to the latest AOSP Android 8.0 Oreo ROM.

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