How to Hard/Factory Reset | Bypass screen lock on LG D100J?

Overview

SpecificationLG D100JL20

LG D100J runs on the processor 1.0 GHz Cortex-A7 Mediatek MT6572M with Dual-core . It has internal memory 4GB and RAM (RAM) 512MB and supports microSD, up to 32 GB (dedicated slot). This model also has 3.5mm jack, supports Bluetooth version 4.0, A2DP and GPS technology Yes, with A-GPS, GLONASS . The USB port supports microUSB 2.0 and Wi-Fi802.11b/g/n, Wi-Fi Direct, hotspot. Its technical characteristics are also the screen size 3.0 in (~40.9% screen-to-body ratio), the resolution 240 x 320 pixels (~133 ppi pixel density) and the type TFT LCD.

Model and Features
Model	LG D100J
Series	L20
Release Date	July, 2014
Body Depth	13 mm (0.51 in)
Body Dimensions	105.6 x 64.5 mm (4.16 x 2.54 in)
Body Weight	106 g (3.71 oz)
OS	Android 4.4.x KitKat
Hardware
CPU	1.0 GHz Cortex-A7 Mediatek MT6572M
CPU Cores	Dual-core
RAM	512MB
Internal Memory	4GB
External Memory	microSD, up to 32 GB (dedicated slot)
Network and Data
SIM	1 Mini-SIM
2G bands	GSM 850/900/1800/1900 MHz
3G bands	HSDPA 900/2100 MHz
4G bands	-
5G bands	-
Technology Data	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+
Display
Screen size	3.0 in (~40.9% screen-to-body ratio)
Type	TFT LCD
Resolution	240 x 320 pixels (~133 ppi pixel density)
Colors	260K colors
Battery and Keyboard
Battery	Removable Li-Ion 1540 mAh
Physical keyboard	-
Interfaces
Audio output	3.5mm jack
Bluetooth	version 4.0, A2DP
DLNA	No
GPS	Yes, with A-GPS, GLONASS
Infrared port	No
NFC	No
USB	microUSB 2.0
WLAN	Wi-Fi802.11b/g/n, Wi-Fi Direct, hotspot