Press the back arrow once or twice to go back to the main Settings screen.
You will see a notification stating, "You are now in Developer mode!". how to open developer options on oppo a38
Select (it will now be visible near the bottom). 🚀 3 Useful Tweaks for Better Performance Press the back arrow once or twice to
: Locate the Build number and tap it seven times in rapid succession. how to open developer options on oppo a38