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How To Install Android 8.1 Oreo Lineage OS 15.1 for Nubia Z9 Max

YouToday, in this article we will share the detailed steps on how to install Lineage OS 15.1 for Nubia Z9 Max custom firmware which is based on Android 8.1 Oreo. So now Nubia Z9 Max users who want to upgrade their smartphone to the latest Android OS, are at right place. Recently, Lineage OS 15.1 builds the latest custom firmware based on Android 8.1 Oreo for ZTE Nubia Z9 Max. By flashing this latest custom firmware Lineage OS 15.1 for Nubia Z9 Max, you can get the experience of real baked Oreo on your own device. The Lineage OS Android Distribution is a free and open-source operating system for smartphones. The Lineage OS is the highly popular custom ROM in Android community. By following this simple and easy step by step guide, you can quickly install Lineage OS 15.1 for Nubia Z9 Max based on Android 8.1 Oreo.

The ZTE Nubia Z9 Max was launched in March 2015 and comes with Android 5.0.2 Lollipop. All thanks to the developer and Lineage team for sharing this amazing custom firmware. The Android 8.1 Oreo ROM brings all the features and changes from Android Oreo-like picture-in-picture support for video, Advanced Doze Mode, Auto Fill Password, New Android O Emoji, support for auto fillers, Bluetooth 5, system-level integration with VoIP apps, New Notification UI, Settings Overhaul changes and much more.

Also, the Android 8.1 Oreo ROM comes with performance improvements and battery usage optimization. This is not officially announced by ZTE but just a custom ROM which is developed by third-party developers. Your device should be rooted and the latest version of a custom recovery like CWM or TWRP must be installed on it, otherwise, you’ll not be able to flash the Lineage OS 15.1 for Nubia Z9 Max.

The ROM is still under development, so you may face some bugs but doesn’t worry about that they will be fixed in next update. The good things are that you can get the experience of latest Android OS on your own device. Don’t forget to take the full backup of all your valuable data before proceeding. If you are interested in installing Android 8.1 Oreo Lineage OS 15.1 for Nubia Z9 Max then go ahead and follow the given steps.

Lineage OS 15.1 for Nubia Z9 Max


You can use this guide to flash the Lineage OS 15.1 Android 8.1 Oreo on the ZTE Nubia Z9 Max. Please do not use the given firmware file for any other device.


  • We highly recommend taking a complete backup of all your data like SMS, MMS, Settings, Audio, Video, Call Logs and Contacts etc stored on the internal memory of your phone.
  • The battery level of the ZTE Nubia Z9 Max should be at least about 70% to prevent unexpected shutdowns while flashing ROM.
  • Enable USB Debugging option by navigating to Settings -> Developer Options on your Nubia Z9 Max.
  • Note: If the Developer Options are available then, go to Menu – Settings – About Phone and from there tap repeatedly on Built Number; the ‘you are a developer’ message will prompt.

Download Files:

  • Download the Lineage OS 15.1 for your ZTE Nubia Z9 Max from here
  • Download Google Apps from here

Steps to Flash Android 8.1 Oreo Lineage OS 15.1 for Nubia Z9 Max:

Step 1: Download the Android 8.1 Oreo Lineage OS 15.1 custom ROM and Google apps package from the Download Section. Save the files on the desktop of your computer.

Step 2: Connect your smartphone using its USB cable with your computer.

Step 3: Transfer the downloaded files from desktop to your phone.

Step 4: Once the files are transferred, unplug the USB cable and disconnect your device.

Step 5: Now, boot the ZTE Nubia Z9 Max into recovery mode by following the given steps:

  • Android SKD must be installed on your PC and set up ADB on MAC OS X / Linux.
  • Make a connection between your device and computer using its USB cable.
  • Navigate to the Fastboot folder on the PC.
  • There open a command prompt window and type “adb reboot recovery”.

Step 6: Before proceeding to the flashing process, first wipe your ZTE Nubia Z9 Max. You can wipe the system from recovery by choosing: “wipe data factory reset”, “wipe cache partition” and “wipe dalvik cache”.

Step 7: After the wiping process completes, go back to main recovery menu.

Step 8: From the recovery menu, select “install zip from SD card” followed by “choose zip from SD card” to start the ROM flashing process.

Step 9: Locate the firmware “Android 8.1 Oreo based custom ROM” and start installing the Lineage OS 15.1 firmware on your ZTE Nubia Z9 Max.

Step 10: Now install Google Apps package by repeating the above steps.

Step 11: Finally, select “reboot system now” from the main menu of recovery.

Your device will take about 4 to 5 minutes to boot for the first time after installation.

Done! You have successfully installed Android 8.1 Oreo Lineage OS 15.1 for Nubia Z9 Max.

Bhatti Junaid

He continuously writes tech articles and development code. Also, appreciates excellent food, exceptional coffee and great company. He has written 266 guides and other posts.

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