LG K51 Developer Options, USB Debugging & OEM Unlock

The “developer options” on the LG K51 is useful in more ways than one. It’s a hidden menu with a huge list of useful options. To unlock the K51 Bootloader (to root the phone) we need to turn on “OEM Unlock” which is found in “developer options”.

Likewise, USB Debugging can aid in moving the apps to SD Card. Using the LG K51 adoptable storage feature we can format the SD card as internal storage and make it the default storage for apps and games.

To turn on OEM Unlock & USB Debugging we need to turn on “Developer options”. Let’s see how to do that –

How to turn on Developer Options & USB Debugging on LG K51 lmk500

Open the Settings app on your K51 and scroll down to the bottom of the page.

Select the 2nd last option i.e. “System”.

Now, tap “About Phone”.

Look for “Software Info” on the about phone page and open it.

Now, we have to tap the “Build number” 7 times to turn on the Developer options.

I’ve tapped it 7 times. It says “You are now a developer!”.

Now, go 2 steps back from the software info page.

 

On the “System page,” you would notice a new option at the bottom i.e. “Developer options”.

Tap “Developer Options” and accept the Warning.

 

At first, Let’s turn on “Enable OEM unlock” option.

As long as “OEM Unlock” remains enabled, Google’s Factory Reset Protection (FRP) is turned off.

Now, scroll down on the page and open “USB debugging”.

Hit “OK” to allow USB debugging.

 

Now we are ready to connect our K51 to the computer via the USB C Cable.

It shows “USB debugging connected”.

The next step is to install the LG K51 ADB Driver.

Also, learn how to move apps to SD Card on LG K51.

 

For any query or feedback, please leave a comment below.

LG K51 Dark mode /night mode/ black theme -how to turn on

The default theme on the LG K51 is a light one with a white background. The white light can put a strain on eyes under low light conditions. Moreover, battery life can be almost doubled when using Dark Mode.

How to enable Dark Mode on LG K51

There are 3 types of Dark Mode on LG K51. They are Night Mode, Maximum Battery Saver Mode & High Contrast Screen. Let’s check them out one by one –

1. LG K51 Night Mode / Dark Mode

lg k51 dark mode

Open the Settings app on your K51 and click “Display” as shown above.

Read moreLG K51 Dark mode /night mode/ black theme -how to turn on

LG K51 secret codes / dialer codes / secret menu – lmk500

There are a few very useful dialer codes for LG K51. Each code reveals a hidden secret menu. There are 6 secret codes in total. These codes provide useful information such as IMEI, Calendar Info, Usage Statistics, Phone Info, etc.

There is also an LG K51 hidden menu with an extensive list of troubleshooting/device testing options including Key Press Test, Motion Sensor Test, Ring Test, Vibrator test, Display, Camera Test, Wifi, Bluetooth, GPS Test, etc.

LG K51 Boost Mobile has got 10 secret codes.

Let’s deal with all of them using the below video and screenshots –

 

LG K51 Secret Codes – MetroPCS lmk500mm / T-Mobile lmk500tm

Also check out the top 35 LG K51 hidden features, secrets & hacks –

LG K51 Hidden Features, Secrets, & Hacks

lg k51 secret codes

We have to use the dialer to launch a secret menu.

Tap the phone dialer icon on your K51 home screen.

Read moreLG K51 secret codes / dialer codes / secret menu – lmk500