You’re new to Android OS? If yes then you may have heard of USB Debugging or Developer Options in many android related articles. If you’re new then it is still a mystery for you that where are these settings in your Android Phone. By default, these settings are disabled but you can unlock them and can access these settings easily. Just follow this tutorial.
1- Goto Settings of your Android Phone. Open About Phone section.
2- Here you will find an option of Build Number. If you didn’t find then there will be an option of Software Information, just tap it and then there will be an option of Build Number.
3- Tap the Build Number option for 10-15 times and you’ve unlocked these settings.