LG K40 LM-X420QM LMX420QM6 User Guide

LG K40 LM-X420QM LMX420QM6 Phone manual cover
Pages 158
Year 2019
Language(s)
English en

LG K40 LM-X420QM LMX420QM6 Phone Specification

The LG K40 LM-X420QM, also known as the LMX420QM6, is a smartphone designed to offer a balance of performance and affordability. It features a 5.7-inch HD+ display with a resolution of 1440 x 720 pixels, providing vibrant and clear visuals suitable for everyday use. Powered by a MediaTek MT6762 Helio P22 octa-core processor, the device ensures smooth operation for basic tasks and app navigation. It comes with 2GB of RAM and 32GB of internal storage, which can be expanded via a microSD card slot, accommodating users' needs for additional space for apps and media.

The phone runs on Android 8.1 Oreo, offering a user-friendly interface and access to a wide range of applications through the Google Play Store. In terms of photography, the LG K40 is equipped with a 16MP rear camera that supports LED flash and a 5MP front camera that includes facial recognition technology for secure unlocking and selfies. For audio enthusiasts, the device features DTS:X 3D Surround Sound, enhancing the listening experience with virtual 3D audio.

Connectivity options include 4G LTE, Wi-Fi 802.11 b/g/n, Bluetooth 5.0, and a 3.5mm headphone jack. The phone is powered by a 3000mAh non-removable battery, providing sufficient power for a full day of standard use. With a sleek design, the LG K40 measures 153.0 x 71.9 x 8.3 mm and weighs 144 grams, ensuring it is both portable and comfortable to hold. It also includes a rear-mounted fingerprint sensor for added security. The LG K40 LM-X420QM offers a practical solution for users seeking essential smartphone functionality without unnecessary complexity.

LG K40 LM-X420QM LMX420QM6 Phone F.A.Q.

How do I perform a factory reset on my LG K40 LM-X420QM?

To perform a factory reset on your LG K40, go to Settings > System > Restart & reset > Factory data reset. Confirm by tapping 'Reset Phone'.

What should I do if my LG K40 is not charging?

First, try using a different charging cable and adapter. Check the charging port for debris and clean it gently if needed. If the issue persists, consider visiting a service center.

How can I take a screenshot on the LG K40 LM-X420QM?

To take a screenshot, press and hold the Power and Volume Down buttons simultaneously until you hear a capture sound.

How do I enable Developer Options on my LG K40?

Go to Settings > System > About phone, then tap 'Build number' seven times. Developer Options will be available in the System menu.

Why is my LG K40 running slow and how can I fix it?

Try clearing app caches, uninstalling unused apps, and ensuring your software is up to date. If needed, consider a factory reset after backing up your data.

How can I free up storage space on my LG K40?

Delete unneeded files, move photos and videos to an SD card or cloud storage, and uninstall apps you no longer use.

How do I update the software on my LG K40 LM-X420QM?

Go to Settings > System > Update center > Software Update. Tap 'Check for update' and follow the prompts if an update is available.

Can I expand the storage on my LG K40?

Yes, you can expand the storage on the LG K40 by inserting a microSD card into the dedicated slot.

What can I do if my LG K40 screen is unresponsive?

Try restarting the device by holding the Power button. If the issue persists, consider performing a factory reset or contact support for hardware issues.

How do I transfer data from my old phone to my LG K40?

You can use LG Mobile Switch app to transfer data wirelessly or via a USB cable from your old device to the LG K40.