Overview LG X420QM(LMX420QM) aka LG K40

Specification LG X420QM(LMX420QM) aka LG K40

Model and Features
Model LG X420QM
Series LG K40
Release Date July, 2019
Depth 8.1 mm (0.32 in)
Size (width x height) 152.9 x 71.8 mm (6.02 x 2.83 in)
Weight 145 g (5.08 oz)
Operating System Android 9 Pie
Hardware
CPU 1.8Ghz Qualcomm Adreno 506
CPU Cores Octa-core
RAM Memory 2GB
Internal Storage 32GB
External Storage microSDHC (dedicated slot)
Network and Data
Number of sim slots 1 Nano-Sim
2G network GSM 850/900/1800/1900 MHz
3G network UMTS 850/1700(2100)/1900/2100 MHz, CDMA800 MHz, CDMA1900 MHz
4G network LTE1900 (B2) , LTE1700/2100 (B4) , LTE850 (B5) , LTE700 (B12) , LTE700 (B13) , LTE1900 (B25)
5G network -
Data GSM/HSPA/LTE
Display
Screen size 5.7 inches (~75.5% screen-to-body ratio)
Display Type IPS LCD capacitive touchscreen
Display Resolution 720 x 1440 pixels (~254 ppi density)
Display Colors 16M colors
Battery and Keyboard
Battery Capacity 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
WiFi Wi-Fi 802.11 b/g/n/i/r/ac

Firmwares LG X420QM(LMX420QM) aka LG K40

LG Phone firmwares regions descriptions
Region File name OS Size Date Downloads
UCK
  • United States
X420QM20c_00_USC_US_OP_0110.kdz Android 9 Pie 2.46 GiB 2020-02-21 21 time(s)
UCK
  • United States
X420QM20d_00_USC_US_OP_0318.kdz Android 9 Pie 2.46 GiB 2020-04-09 6 time(s)
UCK
  • United States
X420QM20e_00_USC_US_OP_0515.kdz Android 9 Pie 2.46 GiB 2020-05-28 1 time(s)
UCK
  • United States
X420QM20f_00_USC_US_OP_0713.kdz Android 9 Pie 2.46 GiB 2020-08-06 0 time(s)
UCL
  • United States
X420QM20b_00_USC_US_OP_1107.kdz Android 9 Pie 2.46 GiB 2020-01-10 29 time(s)
UCL
  • United States
X420QM20c_00_USC_US_OP_0110.kdz Android 9 Pie 2.46 GiB 2020-01-30 14 time(s)
UCL
  • United States
X420QM20d_00_USC_US_OP_0318.kdz Android 9 Pie 2.46 GiB 2020-04-09 4 time(s)
UCL
  • United States
X420QM20e_00_USC_US_OP_0515.kdz Android 9 Pie 2.46 GiB 2020-05-28 1 time(s)
UCL
  • United States
X420QM20f_00_USC_US_OP_0713.kdz Android 9 Pie 2.46 GiB 2020-08-06 0 time(s)
UCW
  • Unknown
X420QM20c_00_USC_US_OP_0110.kdz Android 9 Pie 2.46 GiB 2020-01-31 13 time(s)
UCW
  • Unknown
X420QM20d_00_USC_US_OP_0318.kdz Android 9 Pie 2.46 GiB 2020-04-09 2 time(s)
UCW
  • Unknown
X420QM20e_00_USC_US_OP_0515.kdz Android 9 Pie 2.46 GiB 2020-05-28 2 time(s)
UCW
  • Unknown
X420QM20f_00_USC_US_OP_0713.kdz Android 9 Pie 2.46 GiB 2020-08-06 0 time(s)

Articles LG X420QM(LMX420QM) aka LG K40

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