Overview LG X420EMW(LMX420EMW) aka LG K40 Dual

Specification LG X420EMW(LMX420EMW) aka LG K40 Dual

Model and Features
Model LG X420EMW
Series LG K40 Dual
Release Date March, 2019
Depth 8.3 mm (0.33 in)
Size (width x height) 153.2 x 71.9 mm (6.03 x 2.83 in)
Weight 144 g (5.08 oz)
Operating System Android 8.1 (Oreo)
Hardware
CPU 2.0GHz MediaTek MT6762
CPU Cores Octa-core
RAM Memory 2GB
Internal Storage 32GB
External Storage microSD, up to 1 TB
Network and Data
Number of sim slots 2 Nano-Sim
2G network GSM 850/900/1800/1900 MHz
3G network HSDPA 850/900/1900/2100 MHz
4G network LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 17(700), 20(800), 25(1900), 26(850), 28(700), 40(2300), 41(2500), 46, 48, 66(1700/2100)
Data GPRS/EDGE
Display
Screen size 5.7 inches (~75.4% screen-to-body ratio)
Display Type IPS LCD capacitive touchscreen
Display Resolution 720 x 1440 pixels (~284 ppi density)
Display Colors 16M colors
Battery and Keyboard
Battery Capacity Non-removable Li-Ion 3000 mAh
Physical keyboard
Interfaces
Audio output 3.5mm jack
Bluetooth version 5.0, A2DP, LE, aptX HD
DLNA Yes
GPS Yes, with A-GPS, GLONASS
Infrared port No
NFC No
USB microUSB 2.0
WiFi Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot

Firmwares LG X420EMW(LMX420EMW) aka LG K40 Dual

LG Phone firmwares regions descriptions
Region File name OS Size Date Downloads
DEC
  • Unknown
X420EMW10c_00_OPEN_EEA_DS_OP_0429.kdz Android 8.x Oreo Mirror Release 1 2.05 GiB 2019-07-06 31 time(s)
DEC
  • Unknown
X420EMW10e_00_OPEN_EEA_DS_OP_0705.kdz Android 8.x Oreo Mirror Release 1 2.05 GiB 2019-08-15 5 time(s)
DEU
  • Germany
X420EMW10e_00_OPEN_EEA_DS_OP_0705.kdz Android 8.x Oreo Mirror Release 1 2.05 GiB 2019-08-01 6 time(s)
GBR
  • United Kingdom
X420EMW10c_00_OPEN_EEA_DS_OP_0429.kdz Android 8.x Oreo Mirror Release 1 2.05 GiB 2019-07-11 4 time(s)
GBR
  • United Kingdom
X420EMW10e_00_OPEN_EEA_DS_OP_0705.kdz Android 8.x Oreo Mirror Release 1 2.05 GiB 2019-07-25 15 time(s)
HUN
  • Hungary
X420EMW10c_00_OPEN_EEA_DS_OP_0429.kdz Android 8.x Oreo Mirror Release 1 2.05 GiB 2019-07-06 0 time(s)
HUN
  • Hungary
X420EMW10e_00_OPEN_EEA_DS_OP_0705.kdz Android 8.x Oreo Mirror Release 1 2.05 GiB 2019-08-15 0 time(s)
HUX
  • Hungary
X420EMW10c_00_OPEN_EU_DS_OP_0429.kdz Android 8.x Oreo Mirror Release 1 2.06 GiB 2019-07-11 2 time(s)
HUX
  • Hungary
X420EMW10e_00_OPEN_EU_DS_OP_0705.kdz Android 8.x Oreo Mirror Release 1 2.06 GiB 2019-08-08 0 time(s)
IBR
  • Unknown
X420EMW10c_00_OPEN_EEA_DS_OP_0429.kdz Android 8.x Oreo Mirror Release 1 2.05 GiB 2019-07-11 0 time(s)
IBR
  • Unknown
X420EMW10e_00_OPEN_EEA_DS_OP_0705.kdz Android 8.x Oreo Mirror Release 1 2.05 GiB 2019-07-25 1 time(s)
ITC
  • Unknown
X420EMW10c_00_OPEN_EEA_DS_OP_0429.kdz Android 8.x Oreo Mirror Release 1 2.05 GiB 2019-07-11 3 time(s)
ITC
  • Unknown
X420EMW10e_00_OPEN_EEA_DS_OP_0705.kdz Android 8.x Oreo Mirror Release 1 2.05 GiB 2019-07-25 0 time(s)
NEU
  • Unknown
X420EMW10c_00_OPEN_EEA_DS_OP_0429.kdz Android 8.x Oreo Mirror Release 1 2.05 GiB 2019-07-18 2 time(s)
NEU
  • Unknown
X420EMW10e_00_OPEN_EEA_DS_OP_0705.kdz Android 8.x Oreo Mirror Release 1 2.05 GiB 2019-08-08 1 time(s)
ORY
  • Unknown
X420EMW10c_00_OPEN_EEA_DS_OP_0429.kdz Android 8.x Oreo Mirror Release 1 2.05 GiB 2019-07-11 0 time(s)
ORY
  • Unknown
X420EMW10e_00_OPEN_EEA_DS_OP_0705.kdz Android 8.x Oreo Mirror Release 1 2.05 GiB 2019-08-01 5 time(s)
POC
  • Unknown
X420EMW10c_00_OPEN_EEA_DS_OP_0429.kdz Android 8.x Oreo Mirror Release 1 2.05 GiB 2019-07-11 3 time(s)
POC
  • Unknown
X420EMW10e_00_OPEN_EEA_DS_OP_0705.kdz Android 8.x Oreo Mirror Release 1 2.05 GiB 2019-08-22 4 time(s)
TIM
  • Italy
X420EMW10c_00_TIM_EEA_DS_OP_0429.kdz Android 8.x Oreo Mirror Release 1 2.26 GiB 2019-07-11 5 time(s)
TIM
  • Italy
X420EMW10e_00_TIM_EEA_DS_OP_0705.kdz Android 8.x Oreo Mirror Release 1 2.26 GiB 2019-08-08 1 time(s)
TLF
  • Spain
X420EMW10c_00_OPEN_EEA_DS_OP_0429.kdz Android 8.x Oreo Mirror Release 1 2.05 GiB 2019-07-11 2 time(s)
TLF
  • Spain
X420EMW10e_00_OPEN_EEA_DS_OP_0705.kdz Android 8.x Oreo Mirror Release 1 2.05 GiB 2019-08-08 0 time(s)
VDS
  • Spain
X420EMW10e_00_OPEN_EEA_DS_OP_0705.kdz Android 8.x Oreo Mirror Release 1 2.05 GiB 2019-09-12 2 time(s)
WIN
  • Italy
X420EMW10c_00_OPEN_EEA_DS_OP_0429.kdz Android 8.x Oreo Mirror Release 1 2.05 GiB 2019-07-11 0 time(s)
WIN
  • Italy
X420EMW10e_00_OPEN_EEA_DS_OP_0705.kdz Android 8.x Oreo Mirror Release 1 2.05 GiB 2019-08-01 3 time(s)

Manual LG X420EMW(LMX420EMW) aka LG K40 Dual

How to Factory Reset through menu on LG X420EMW(LMX420EMW) aka LG K40 Dual ?

  1. Open the Main Menu.
  2. Go to "Settings".
  3. In Settings choose "General".

  4. In General select "Backup & Reset".

  5. Next, clik on "Reset Phone".

  6. Confirm by clicking  "Erase Everything".

  7. Finally, press "OK".

  8. The hard reset is completed now. 
  9. As a result of these actions, the memory of your phone can not be restored.

How to Hard Reset on LG X420EMW(LMX420EMW) aka LG K40 Dual ?


Type 1:

 

Type 2:

 

Type 3:

 

  1. Turn off the phone.
  2. Next press and hold the Power key and Volume down key for ten seconds.
  3. Release the power key while holding down the volume key.
  4. Next press the power button again.
  5. After these actions, the Factory Reset menu will appear on the screen.

    Type 1:

    Type 2:

  6. Use the Power key and Volume key to confirm the process.
  7. The hard reset is completed now.
  8. As a result of these actions, the memory of your phone cannot be restored.

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