Have you ever wonder how to find hidden functions in OnePlus 9 Pro? By using this tutorial you can unlock OnePlus Developer Settings. Check out how to enable developer options and use secret options of Android 11.
Firstly, turn on the smartphone by pressing the Power key for a few seconds.
Open the main screen and swipe up to expand the apps list.
Then choose Settings.
After that select About Phone where find the Build number position.
Tap on Build number until you become the developer.
At the end back to the System option and find Developer options.