Once enabled, you won't find the menu on the main settings page. Follow these steps to find it:
: Scroll down to the bottom of the menu and select About device .
(this may be labeled as "About version" or "Baseband & kernel"). Locate the Build number and tap it seven (7) times consecutively. If prompted, enter your lock screen password or PIN to confirm. You will see a toast notification stating, "You are now in Developer mode!" Step 2: Access the Developer Options Menu
Allows the bootloader to be unlocked for advanced modifications. Stay Awake: Keeps the screen on while the phone is charging. [!CAUTION]
A small pop-up notification will appear saying, "You are now a developer!". Step 2: Access the Developer Menu