/e/ OS Version Upgrade

Manually upgrade a3xelte to Q

Warning : Downgrading Smartphones already on Android Q or LineageOS 17.x to Pie or from Pie OS to Oreo or Nougat can cause instability or at worst brick some devices.

Tip: To suggest changes to this install guide documentation, please visit the Galaxy A3 2016 Exynos specific topic on our community forum. To report issues in the build please refer this guide

Basic Requirements

  • adb and fastbooot should be setup and working on your PC

    To set up adb follow details provided here

  • adb and fastboot need root rights in Linux and administrator rights in Windows.

    In Linux prepend sudo to any adb or fastboot command For e.g. “sudo fastboot reboot” and in Windows start the command window as administrator.

Caution: Before following these instructions please ensure that the device is on the latest Android firmware available for your device. For example if available, before flashing /e/R install Stock Android 11, before /e/Q it should be Stock Android 10 or before /e/ Pie it should be Stock Android 9.


  • Please note this upgrade build could not be tested as there were no device specific testers available.
  • Some devices may need a revert to stock ROM prior to upgrade.
  • To flash the stock ROM you would need to use a tool provided by your vendor
  • You may also need to download a recovery image built specifically for your device.


  • Download Upgrade Build for the a3xelte here

  • Q (dev) (Q)

  • Download TWRP

Download of TWRP is not required if you already have it running on your a3xelte

Manually upgrading your a3xelte to Q

  • Make sure your computer has working adb. Setup instructions can be found in the Basic Requirements section above.
  • Enable USB debugging on your device. Instructions are available in the Basic Requirements section above.
  • Next on the phone
    • Open Settings >> System >> Developer Options here select Root Access Options and choose ADB Only
    • Open Settings >> System >> Developer Options here choose ADB Only
  • Now on the PC
    • In the same console Run adb reboot sideload
Warning: The device may reboot to a blank black screen, this is a known bug on some recoveries, proceed with the instructions.
  • Run adb sideload /path/to/zip (inserting the path to your downloaded /e/OS ROM file)

  • Once you have installed everything successfully, click the back arrow in the top left of the screen, then Reboot system now

Warning: Avoid installing any additional apps or services if suggested by the recovery. They may cause your device to bootloop, as well as attempt to access and or corrupt your data.

Answers to some questions you may have on the process

Why do I need to manually upgrade the OS

  • The updater app does not support upgrades from one Android version to another. It will hide any update of a different version.
  • We are working on resolving this issue.
  • While this issue is resolved, users need to manually upgrade their OS.
  • Upgrading manually requires similar steps to installing /e/OS for the first time.