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How to Enable and Use Feature Flags in Android 9 Pie

Last Updated on March 7, 2021 by Bestusefultips

This is a hidden Android Pie feature. This tutorial teaches you how to enable feature flags in Android 9 Pie devices. You can use feature flags to back Oreo settings for given options such as battery display, Bluetooth while driving, about phone, and more. You can find this setting under the developer mode settings. This newly added feature flags are already available on the Google Chrome browser.

Android Pie 9.0 has several new features such as Adaptive Battery, Adaptive brightness, Digital wellbeing, App actions, overview selection, feature flags, cutout Notch display, and more.

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How to Use Feature Flags in Android 9 Pie   

You can see 7 commands for change settings of Android Pie. First of all, make sure to enable developer options in Android 9 Pie device to use this feature flags.

Step 1: Swipe down the notification shade and tap the Settings gear icon.

Step 2: Tap System.

Step 3: Tap About phone.

Step 4: Scroll down the end of the page and tap the Build number 7 times or tap until view “you are now developer! message.

Step 5: Now enable developer mode in your device.

How to Enable Feature Flags Android 9 Pie

Step 1: Go to Settings on your phone.

Step 2: Tap System.

Advanced settings in android 9 Pie

Step 3: Tap Advanced.

Android 9 Pie developer mode settings

Step 4: Scroll down at end of the page and tap Developer options.

Here you can see several useful android Pie developer settings such as OEM unlocking, running services, USB debugging, logger buffer size, Windows animation scale, simulate secondary display, and more.

Android 9 Pie’s feature flags

Step 5: Tap Feature flags under the Debugging section.

You can see below given a list of options in android 9 Pie’s feature flags. By default disable only two feature flags, one is settings_bluetooth_while_driving and another settings_battery_display_app_list.

How to use feature flags in Android 9 Pie


It will change your android Pie device UI of about phone section.


When enabling this option on your phone, it’ll automatically connect with your car Bluetooth or other accessories while driving.


Currently not found any change while turn on this option.


Same here you can’t found any change when set as true or false.


Now found any change when enable or disable features flags Android 9 Pie.


It will add automatic time zone settings under date & time settings in your android 9 Pie devices.


You can see app usage battery since fully charge in the battery settings when enabling feature flag on Android Pie 9.0.

Feature Flag Android 10

Settings > System > Advanced > Developers > Feature flags under the Debugging section

Here, you can’t see any options on your Android 10.

And that’s all. I hope this little tutorial useful to enable and use feature flags in Android 9 Pie. Do you know any other hidden android 9 Pie tips you want to share? Tell us in below comment box.

About Bestusefultips

I'm Arpit Patel, a techno lover from India. Bestusefultips is a technology website focused on the latest Android news, tricks & tips related to Android devices, tutorials and videos.

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