Developer options screen was visible until Android 4.1 and at that time other than USB debugging there were quite a few options. Later on, more features were added but only useful to developers. So, since Android 4.2 it is kept hidden and needs to be enabled.
As LG Aristo is running on Android Nougat 7.0 the developer mode is hidden. Please perform the below steps to enable developer options.
How to Enable LG Aristo Developer Options –
Pull down the notification bar and click on “Settings” icon.
On “Settings” Page Scroll down and look for “About Phone”. Click on it.
Now look for “Software info” and select it as shown above.
On “Software info” page we’ve to hit on “Build Number” 7 times. When you’ll hit it for the 7th time a popup will say “You are now a developer”.
Now go 2 steps back i.e again to “Settings” page. Here you’ll see “Developer Options” is visible above “About Phone” which was not there before. You’ve enabled developer options. Now we’re one step closer to bootloader unlocking.
Follow the next tutorial to unlock the LG Aristo Bootloader.
For any queries feel free to contact via the comments section below.