How to Hard/Factory Reset | Bypass screen lock on LG 855?

Overview

LG 855 runs on the processor 1.0 GHz, Texas Instruments OMAP 3630 with Single-core . It has internal memory 4GB and RAM (RAM) 512MB and supports microSD, up to 32 GB (dedicated slot), 2 GB included. This model also has 3.5mm jack, supports Bluetooth version version 3.0, A2DP and GPS technology Yes, with A-GPS . The USB port supports microUSB 2.0 and Wi-Fi802.11b/g/n, DLNA, hotspot. Its technical characteristics are also the screen size 4.0 in (~58.3% screen-to-body ratio), the resolution 480 x 800 pixels (~233 ppi pixel density) and the type IPS LCD capacitive touchscreen.

SpecificationLG 855Marquee

Model and Features
Model	LG 855
Series	Marquee
Release Date	October, 2011
Body Depth	9 mm (0.35 in)
Body Dimensions	122 x 64 mm (4.80 x 2.52 in)
Body Weight	112 g (3.95 oz)
OS	Android 2.3 (Gingerbread)
Hardware
CPU	1.0 GHz, Texas Instruments OMAP 3630
CPU Cores	Single-core
RAM	512MB
Internal Memory	4GB
External Memory	microSD, up to 32 GB (dedicated slot), 2 GB included
Network and Data
SIM	1 Mini-SIM
2G bands	-
3G bands	-
4G bands
5G bands	-
Technology Data	-
Display
Screen size	4.0 in (~58.3% screen-to-body ratio)
Type	IPS LCD capacitive touchscreen
Resolution	480 x 800 pixels (~233 ppi pixel density)
Colors	16M colors
Battery and Keyboard
Battery	Removable Li-Ion 1500 mAh
Physical keyboard	-
Interfaces
Audio output	3.5mm jack
Bluetooth	version version 3.0, A2DP
DLNA	Yes
GPS	Yes, with A-GPS
Infrared port	No
NFC	No
USB	microUSB 2.0
WLAN	Wi-Fi802.11b/g/n, DLNA, hotspot