Google has released the Android Q Beta recently during its last keynote with the support to some non-Google devices. This new Android Q Beta has been released for OnePlus 6 and 6T which is an open beta and anyone can install it on their smartphone. I won’t recommend you to install this beta on your primary smartphone because the build is not completely stable. But if you already installed it on your OnePlus 6 or 6T and want to revert back to the Android 9 Pie. Here is a little step by step guide which can help you do that.

Prerequisites

• The smartphone should have at least 40 percent battery or you can keep the phone connected to the wall charger during the process.
• Make sure to create a backup of all your important data because the installation will wipe the system.
• Download the correct ROM package according to your device. OnePlus 6 and 6T both have different ROM packages.
• The first boot may take some time so do not panic and let the phone boot, it may take up to 5 minutes.

Steps to Revert back to Android 9 Pie

1. Download the latest ROM package on your phone; OnePlus 6 and OnePlus 6T.
2. Go to Settings > System > System Updates and tap on the settings on the top right corner.
   
3. Select Local Upgrade, locate the downloaded package and start the upgrade.
4. You will be prompted to reboot the smartphone to finalize the installation.
5. The smartphone will reboot and it may take some time to boot for the first time.
6. Once booted, you can set up your phone with your Google account.

Conclusion

Android Q is still in beta version but if you want, you can download and try later beta versions to check out more features. OnePlus will release the Android Q to OnePlus 6, 6T, 7 and 7 Pro right after the official launch.