How to Install AOSP Android 9.0 Pie on General Mobile GM 9 Pro

Android 9.0 Pie For General Mobile GM 9 Pro:

General Mobile GM 9 Pro unofficially Receive android 9.0 Pie update With the AOSP Custom ROM, it’s user Can update it to Android 9.0 Pie by Flashing the AOSP. The ROM has been tested on Both General Mobile GM 9 Pro & GM 8 & it’s Working Good. This is Not a Device based Port it’s a GSI Image by Phhusson.

The General Mobile GM 9 Pro Smartphone is Run on Android 8.1 OS Which Is Powered by QCOM SD 660 Processor. The Device Come with 4GB of RAM and 64GB of Storage Can Be Expandable via SD card.


  • unlocking The bootloader Will Erase All Your Data So First Make a Backup before Process.
  • Make Sure Your Phone at Least 50% Charge to Prevent accidental Shut Down.
  • GSI Image’s are in Beta So Not 100% Work on Many Devices So if it not Work on Your Phone Please Re-flash Stock Firmware to Recover.


  • boot
  • SIM
  • WiFi
  • hotspot
  • GPS
  • Bluetooth

Know issue:

  • unknown


  • Platform tools Here
  • Android 9.0 Pie for bq Aquaris C [arm64 AB onlyHere
  • Root Your phone using This Guide:Here

How to Install Android 9.0 pie on General Mobile GM 9 Pro:

  1. Download & Extract Platform tools inside a Folder
  2. Download and Extract ROM file in platform tools folder
  3. on Phone Enable usb Debugging and oem unlock From Developers Option
  4. Connect Phone to PC With usb. & then use BElow code to Perform target action.

type below code to reboot Phone in bootloader

adb reboot bootloader

type below code to unlock bootloader & Flash android 9.0

fastboot flashing unlock
fastboot erase userdata
fastboot flash system system.img

then type below code to reboot

fastboot reboot

Done. Android 9.0 Pie now Installed.

Install With twrp:

  1. Download ROM File From above and Move it to Device Storage
  2. Reboot Phone to twrp and Click on backup create a nandroid backup
  3. Click on Install then Select Install image Navigate System.img file
  4. From the Next Screen Select install as System partition. and Swipe Slider
  5. Wait until Installation Complete. Go back and Reboot System Now.


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