How to Hard/Factory Reset | Bypass screen lock on LG LMX420QM?

All tutorials for LG LMX420QM

How to Hard Reset on LG LMX420QM?

Type 1: Type 2: Type 3: Press the Power button to turn off the phone. Hold down the Power key and the Volume down button for five seconds. Release the Power key but keep holding down the...

How to Factory Reset through menu on LG LMX420QM?

Go to the Main Menu. Select "Settings". In Settings touch "General". Next, select "Backup & Reset". Then, tap "Reset Phone". Tap "Erase...

How to change language on LG LMX420QM?

The device must be on. Go to "Settings" and choose "General". Go for "Language & input". Finally, select "Language". That's all! The...

How to Flash Stock Firmware on LG LMX420QM?

To flash your phone, the following applications should be installed on your PC: LG UP 1.14 LG UP 1.16 UPPERCUT LG Drivers Open LG Up latest version. Turn off your phone and press and hold the Volume up key. Connect...

How to take screenshot on LG LMX420QM?

The device must be turned on. Choose what you want to capture. Press and hold the Power button and the Volume Down key. Excellent! The screenshot has been saved.

Top 5 secret codes for LG LMX420QM

The first is: *#546368#*885# It is a Hidden Menu , in this menu you can test a lot of options on your device . The second is: *#*#4636#*#* In this menu you can find all information about your phone...

Enable Developer mode & USB debugging on LG LMX420QM

Turn on your device. In Settings choose "General". Now select "About phone". Now tap "Software info". Tap "Build number" seven times and return to...

Overview

LG LMX420QM runs on the processor 1.8Ghz Qualcomm Adreno 506 with Octa-core . It has internal memory 32GB and RAM (RAM) 2GB and supports microSDHC (dedicated slot). This model also has 3.5mm jack, supports Bluetooth Version 5.0, A2DP, LE and GPS technology Yes, with A-GPS, GLONASS . The USB port supports microUSB 2.0 and Wi-Fi 802.11 b/g/n/i/r/ac. Its technical characteristics are also the screen size 5.7 inches (~75.5% screen-to-body ratio), the resolution 720 x 1440 pixels (~254 ppi density) and the type IPS LCD capacitive touchscreen.

SpecificationLG LMX420QMK40

Model and Features
Model	LG LMX420QM
Series	K40
Release Date	July, 2019
Body Depth	8.1 mm (0.32 in)
Body Dimensions	152.9 x 71.8 mm (6.02 x 2.83 in)
Body Weight	145 g (5.08 oz)
OS	Android 9 Pie
Hardware
CPU	1.8Ghz Qualcomm Adreno 506
CPU Cores	Octa-core
RAM	2GB
Internal Memory	32GB
External Memory	microSDHC (dedicated slot)
Network and Data
SIM	1 Nano-Sim
2G bands	GSM 850/900/1800/1900 MHz
3G bands	UMTS 850/1700(2100)/1900/2100 MHz, CDMA800 MHz, CDMA1900 MHz
4G bands	LTE1900 (B2) , LTE1700/2100 (B4) , LTE850 (B5) , LTE700 (B12) , LTE700 (B13) , LTE1900 (B25)
5G bands	-
Technology Data	GSM/HSPA/LTE
Display
Screen size	5.7 inches (~75.5% screen-to-body ratio)
Type	IPS LCD capacitive touchscreen
Resolution	720 x 1440 pixels (~254 ppi density)
Colors	16M colors
Battery and Keyboard
Battery	Non-removable Li-Po 3000 mAh
Physical keyboard	-
Interfaces
Audio output	3.5mm jack
Bluetooth	Version 5.0, A2DP, LE
DLNA	Yes
GPS	Yes, with A-GPS, GLONASS
Infrared port	-
NFC	-
USB	microUSB 2.0
WLAN	Wi-Fi 802.11 b/g/n/i/r/ac