Have you ever wonder how to find hidden functions in OPPO A37? By using this tutorial you can unlock OPPO Developer Settings. Check out how to enable developer options and use secret options of Android 5.1 Lollipop.
Firstly, unlock the OPPO A37 and open Settings.
In the next step, find and choose About Phone to get into developer settings.
Afterward, tap a couple of times on the Version in order to enable Developer Options.
At this moment, choose Additional Settings to get into advanced settings of a developer.
In the final part, pick Developer Options to enable OEM Unlock or USB Debugging.