How to Install AOSP Android 9.0 Pie on Symphony i97 [GSI Phh-Treble]

In this article, we will share with you steps on how to download and install AOSP Android 9.0 Pie on Symphony i97 device [GSI Phh-Treble]. The AOSP (Android Open Source Project) Custom ROM is based on Android 9.0 Pie GSI with the Project Treble support. The GSI full-form is Generic System Image. The word “Generic” means that the software image file can be installed on any Treble-supported OEM device. Meanwhile, you can check out the complete list of Android devices which supports Android Pie 9.0 Generic System image (GSI).

If you’re using the Symphony i97 handset and want to install Android Pie-based custom ROM on your device, here is good news for you. Now, you can now download and install the Android Pie 9.0 GSI on Symphony i97. The full credit goes to one of the XDA Recognized Developers called phhusson for developing the Project Treble GSI build. Nowadays, the third-party ROM developers have mainly focused on the Custom ROM development with Project Treble support. While other well-known Custom ROMs like Lineage OS, Resurrection Remix, Mokee OS, Pixel Experience now also comes with the built-in Treble support.

How to Install AOSP Android 9.0 Pie on Symphony i97 [GSI Phh-Treble]

Features of Android 9.0 Pie

Android 9.0 Pie is the current and latest stable Android version in the market. Google has announced it last year with so many features and improvements. It’s the 9th generation of Android OS and much better than the previous generation of Android Oreo. Recently, this year Google has announced Android Q but it’s in beta stage right now. Stable Android Pie brings improved privacy and system enhancements. Such as Gesture Navigation, New QS toggle, adaptive battery & brightness, new volume slider, etc.

It also offers recent UI, themes, Digital Wellbeing, App Slices, App Actions, App timer, new notification, etc. Additionally, the Pie brings system stability, privacy and security features, improved accessibility menu, screenshot shortcut, new Settings UI, lock screen UI, easy screen rotation icon, and more.

Now, before going to the installation process, let’s take a look at the requirements properly and then download all the necessary files from the links given below.


  • ROM file supported: Symphony i97 device only. Don’t try it on other devices.
  • Charged your phone battery up to 60% at least for a smoother process.
  • Make sure to take a complete backup of your device data at first. If in case, anything goes wrong, you will easily get back the important data.
  • Next, perform a full data wipe (factory reset) from the stock recovery [Required]. Otherwise, you may get the error while installing AOSP ROM.
  • Download the Android USB Drivers and simply install it on your PC.
  • You will need to unlock the bootloader on the MediaTek device.
  • Download and install the ADB and Fastboot tool on your PC.

Download GApps and AOSP Android 9.0 Pie on Symphony i97

You can download the ROM file and Open GApps file from the links given below:

Download GSI Treble Firmware File

Download Open GApps 9.0

The AOSP Custom ROM is in beta stage. So, it’s recommended not to use it as your daily driver as it may contain bugs or may not be stable. We’re at GetDroidTips will not be responsible for any kind of internal/external damages to the device during/after following this guide.

Steps to Install AOSP Android 9.0 Pie on Symphony i97

If you want to install the Android Pie based AOSP Custom ROM on your device, then follow this guide completely. You need to flash the Custom Pie ROM via ADB Sideload method on your device. Because the TWRP Recovery flashing isn’t supported yet.


Install ROM via ADB Sideload Method

Currently, there is no support available for the TWRP Recovery. In order to install the Android Pie-based AOSP Custom ROM on your device, follow the full guide mentioned in the link below.

How to Install Generic System Image on Project Treble Devices

We hope that this guide will help you to install the Android 9.0 Pie on Symphony i97 based on Project Treble GSI images. If you’re experiencing any issues, let us know in the comments below or you can follow the source link to give feedback to XDA Developers Forum.

Source: XDA


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