How to Install Lineage OS 17 for Xiaomi Mi 9 SE | Android 10 [GSI treble]
Today we will guide you on how to install the Lineage OS 17 on the Xiaomi Mi 9 SE device by following our guide. This build is based on Lineage OS 17 GSI...
Abd Razaaq
Last updated on November 11, 2025
Abd Razaaq
Author
I'm a Tech Content Writer and Full-Time blogger. Since I love Android and Google's device, I started my career in writing for Android OS and their features. This led me to start "GetDroidTips". I have completed Master of Business Administration at Mangalore University, Karnataka.
Today we will guide you on how to install the Lineage OS 17 on the Xiaomi Mi 9 SE device by following our guide. This build is based on Lineage OS 17 GSI developed by XDA Recognized Contributor AndyYan on this XDA Forum with the Phh’s Source of Android 10 GSI (phhusson). To install this, you need to unlock the bootloader and install the latest TWRP Recovery on your device.
Well, GSI stands for Generic System image which is a “pure Android” implementation with unmodified Android Open Source Project (AOSP) code, runnable on a variety of Android devices that has treble support. Yes, now you can enjoy the new Lineage OS 17 based on Android 10, which is Google’s 10th version of Android OS with plenty of new features and system UI changes.
Xiaomi Mi 9 SE was announced in March 2019 which sports a 5.97-inch Super AMOLED display with a screen resolution of 2340 x 1080 pixels with 432 PPI pixel density. The device is protected by Corning Gorilla Glass 5.
Xiaomi Mi 9 SE is powered by a Qualcomm Snapdragon 712 chipset coupled with 6GB of RAM and 64/128GB of internal storage. The device came out of the box with Android 9.0 Pie under MIUI 10 and backed by a 3070 mAh battery (Non-removable).
As far as the camera concerned, the device has a Triple-camera setup with 48MP + 8MP + 13MP primary sensors and a selfie camera with a 20MP lens. Other connectivity option includes 4G-VoLTE, GPS, Glonass, Bluetooth, Mobile Hotspot, accelerometer, ambient light sensor, gyroscope, proximity sensor, and compass/ magnetometer. etc. The Xiaomi Mi 9 SE comes with a fingerprint sensor under the display.
What’s on the Android 10 version?
Google has officially unveiled the latest version of Android OS called Android 10. The update is already going live for Pixel series devices. It brings plenty of new features to the device system like system UI, new gesture navigation, improved privacy and location control. The update also offers enhanced app permissions, foldable display support, security features, system-wide dark mode, etc.
The Android 10 also offers built-in call screening, multi-camera API, smart replies in the notification panel, 5G support, improved call quality, bubble feature, live caption, and more. While the latest version also improves battery life, Focus mode which is similar to the Do Not Disturb mode, etc. Apart from that Android 10 also features 65 new emojis. It also comes with direct audio streaming support to hearing aid devices.
Lineage OS 17: Android 10 Build
Lineage OS is an open-source and free operating system that is based on the Android platform. It is the successor to the custom MOD, the CyanogenMod, which shut down its operation in December 2016. However, Cyanogen. Inc retained the rights to the custom MOD and gave a rebranding to it as Lineage OS.
Well, LineageOS 17 will be based on the latest Android 10 and it comes with all the Android 10 features and Lineage customization options which allows users to be more advanced. Now you can enjoy Lineage OS 17 on Xiaomi Mi 9 SE by flashing this custom ROM.
Steps to Install Lineage OS 17 ROM on Xiaomi Mi 9 SE
First, unlock the Xiaomi Mi 9 SE bootloader and flash the latest TWRP Recovery. Here we have mentioned all the requirements and download links to flash the Lineage OS 17 on Xiaomi Mi 9 SE.
Disclaimer:
LineageOS 17 GSI build is based on PHH’s AOSP Android 10 GSIs which is still marked as a pre-release. Even on a device that runs Pie GSIs nicely, it’s still possible to get broken media, camera, RIL or even flat-out no-boot. You are strongly advised to try PHH’s original and then identify/report issues there, before moving onto other GSIs that are based on his work. Please report bugs here only if it’s specific to this GSI.
We’re at GetDroidTips won’t be responsible for any kind of damage or error that occurs to your handset while or after following this guide. This is a Custom ROM and may contain some of the bugs or stability issues. We can’t recommend you to use this firmware as your daily driver. Proceed at your own risk.
Pre-Requirements:
Lineage OS 17 GSI Treble build is supported on Xiaomi Mi 9 SE.
You will require to unlock the device bootloader at first
We hope that this guide is helpful to you and you have successfully installed the Lineage OS 17 on your Xiaomi Mi 9 SE handset easily. If in case anything goes wrong or if you have any queries, feel free to ask in the comments below.
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