Xiaomi
Turn Off Developer Options auf Xiaomi
Developer options gets unlocked on Xiaomi phones through a hidden tap sequence on the build number, and once active it stays visible in the settings menu until you turn it off manually.
Simply rebooting or updating apps does not remove it, because MIUI treats it as a separate system toggle rather than a temporary state.
Where to find the switch
Open Tap on Settings ➔ Tap on Additional settings ➔ Tap on Developer options. Inside this screen, use the switch at the top to Turn Off Developer options, then confirm any prompt that appears.
Once the toggle is off, tap Tap on Back to exit to leave the screen. The Developer options entry disappears from Additional settings the next time you open it, and it only reappears if you repeat the unlock sequence on the build number.
What changes after disabling it
Turning it off resets USB debugging, mock location, and other developer-only permissions back to their default state.
Apps that check for an active developer mode, such as some banking or payment apps, usually stop showing warnings right after this step.
If you still need USB debugging for occasional app testing, keep the menu enabled and only switch off the individual toggle for debugging instead of hiding the whole menu.