The developer options on the OnePlus smartphone provide features for app developers that are almost all uninteresting or irrelevant to the home user.

Useful for the home user is, for example, the USB debugging function, which allows deeper intervention in the system.

To unlock the developer options on the OnePlus device, we navigate to the device settings and tap the build number seven times.

Note: If a lock screen has been set up, the appropriate unlock method (Pattern/PIN/Password) is required before the developer options are unlocked.
After activating the developer options, we find the menu item in System Preferences.

Android 10 (OxygenOS 10.0)
Step 1:  Open the  Settings
Step 2:  Tap on  About phone
Step 3:  Tap on  seven times  on  Build number
Step 4:  Enter the current  pattern,   PIN  or  password
Step 5:  Watch the  pop-up
  1. Open the Settings
  2. Tap on About phone
  3. Tap on seven times on Build number
  4. Enter the current pattern, PIN or password
  5. Watch the pop-up

OnePlus Instructions
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