To open Developer Options on your OPPO A38, you must first unlock the hidden menu by tapping your device's Build number seven times Step 1: Unlock Developer Mode app on your phone. Scroll down and select About device Version number Build number ) and tap it rapidly seven times If prompted, enter your lock screen password or pattern.

: Restrict the number of apps running in the background to save RAM. OEM Unlocking

Open Settings: Locate and tap the Settings app on your home screen.

If you want, I can give step-by-step screenshots or the exact menu names for ColorOS version on your phone; tell me the ColorOS version shown in Settings → About Phone.

If you own an Oppo A38 and need to access these advanced settings, you’ve come to the right place. In this long-form guide, I’ll walk you through exactly how to open developer options on Oppo A38, explain what you can do once you’re inside, and highlight important warnings to keep your device safe.

Scroll down to find Developer options, which will now be visible near the bottom of the list.  Phase 3: Critical Features & Safety 

Need more help? Leave a comment below or visit the official Oppo Community forums for device-specific advice.

Find Version Details: Look for the Version tab (this may be listed under "Software information" on some software builds) and tap it.

Once unlocked, the menu is hidden within your system settings: Go back to the main Additional settings Scroll down and tap on Developer options How to Disable Developer Options If you want to hide the menu again, simply open Developer options and toggle the switch at the top to