How to add developer tools to your Android phone
Adding developer tools to your Android phone is straightforward. So here's how you can enable Developer Options:
Open Settings
Go to the Settings app on your Android device.
Scroll down and tap on "About Phone".
In the About Phone section, locate the "Build Number" entry.
Tap the "Build Number" entry seven times. You might need to enter your device's PIN or password. After a few taps, you'll see a message saying "You are now a developer!".
Now go back to the main Settings menu. You should now see "Developer Options" listed under System or perhaps Additional Settings.
Tap on "Developer Options" and toggle the switch to enable it.
Once enabled you can use features such as USB debugging, OEM unlocking, and more.
To see a full list of developer options, visit the XDA developer's site - https://www.xda-developers.com/android-developer-options/ and read the article Android Developer Options Explained: Everything you can do with these settings.