LG K30 & K40 Dark Mode – How to turn ON

There are 2 ways to turn on the Dark Mode on LG K40 & K30. You can enable it by turning on “High Contrast Screen” in the Accessibility Settings or by activating “Maximum Mode” which is a battery saver mode and can be enabled in the Battery settings.

Lets’ check out these modes with the help of the video and screenshots below –

How to Enable Dark Mode on LG K40 & LG K30

Dark Mode on K30 /K40 is like a Dark theme with a black background. Even the keyboard is darkened in this mode.

If most of the time you are using your phone indoors in low light conditions, then this mode may suit you. Moreover, if you enable dark mode in the form of Maximum Battery Saver Mode you would almost double the battery life of your K30 / K40 as compared to regular mode.

1. High Contrast Screen – LG K30 / K40

LG K30 Dark mode

The first Dark Mode is the High Contrast Screen.

Read moreLG K30 & K40 Dark Mode – How to turn ON

LG K30 Root & Bootloader Unlock – LM-X410(FG)

Gone are the days when rooting was done in one click using the Kingroot app even without unlocking the bootloader. That exploit worked until Android Lollipop 5. Since the marshmallow, the common root procedure is unlocking the bootloader, flashing a custom recovery (TWRP) & installing SuperSu or Magisk root via TWRP.

In this method, the first step is the most crucial step. If we fail to unlock the bootloader then we cannot proceed further. A TWRP cannot be flashed when the bootloader is locked.

Now let’s talk about LG K30. The predecessor to K30 was K20. It was a rootable device. Even a few Custom ROMs such as Lineage OS, AICP, AOSP, etc. are available for LG K20 Plus.

We are going to use the same rooting procedure which is applicable for LG K20 Plus. So Let’s do the first step i.e. unlocking the bootloader.

LG K30 Bootloader Unlock – LM-X410(FG)

To unlock the LG K30 bootloader, we need to turn on USB Debugging. This option can be found in the Developer Options.

Learn How to turn on Developer Options and Enable USB Debugging on LG K30.

The next step is to install the LG K30 USB Driver.

I’ve enabled USB Debugging and installed the LG Mobile Driver on my PC. Let’s proceed further –

lg k30 root

At this point, I’m ready to connect my K30 to the computer via the USB data cable.

Read moreLG K30 Root & Bootloader Unlock – LM-X410(FG)

How to Unlock LG K40 Free – LM-X420MM / LMX420AS / LMX420TM / LMX420QM6

In this post, we are going to unlock LG k40 for free without paying for any unlock service or unlock code. Mine is a MetroPCS K40 with model number lmx420mm.

There are six LG K40 variants. Out of these, one is factory unlocked so no need to unlock it. It is compatible with all the major GSM and CDMA carriers in the USA.

The rest of the k40 variants are –

LG K40 AT&T lmx420as
K40 MetroPCS lmx420mm
K40 T-Mobile lmx420tm
K40 Spectrum Mobile lm420qm6
K40 US Cellular lmx420qm

The unlock method differs from carrier to carrier. Let’s start with the MetroPCS / T- mobile LG k40

1. How to unlock LG K40 for free – MetroPCS lmx420mm /T Mobile lmx420tm

LG K40 MetroPCS unlock free

A MetroPCS /T-Mobile k40 can be unlocked using the pre-installed device unlock app.

Look for the “Metro by T-Mobile” folder on the home screen.

Open the folder and select the “Device Unlock” app as shown in the above screenshot.

Read moreHow to Unlock LG K40 Free – LM-X420MM / LMX420AS / LMX420TM / LMX420QM6