How to Hard/Factory Reset | Bypass screen lock on LG C550?

Overview

LG C550 runs on the processor 600 MHz, Qualcomm MSM7227 with Single-core . It has internal memory 140MB and RAM (RAM) 512MB and supports microSD, up to 32 GB (dedicated slot). This model also has 3.5mm jack, supports Bluetooth version 2.1, A2DP, EDR and GPS technology Yes, with A-GPS . The USB port supports microUSB 2.0 and Wi-Fi802.11b/g, Wi-Fi Direct, hotspot. Its technical characteristics are also the screen size 2.8 in, 23.3 cm2 (~36.3% screen-to-body ratio), the resolution 320 x 480 pixels 3:2 ratio (~206 ppi density) and the type TFT touchscreen.

SpecificationLG C550Optimus Chat

Model and Features
Model	LG C550
Series	Optimus Chat
Release Date	March, 2011
Body Depth	16 mm (0.63 in)
Body Dimensions	109 x 59 mm (4.29 x 2.32 in)
Body Weight	122 g (4.30 oz)
OS	Android 2.2 (Froyo)
Hardware
CPU	600 MHz, Qualcomm MSM7227
CPU Cores	Single-core
RAM	512MB
Internal Memory	140MB
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 900/1700/2100 MHz
4G bands	-
5G bands	-
Technology Data	GPRS/EDGE
Display
Screen size	2.8 in, 23.3 cm2 (~36.3% screen-to-body ratio)
Type	TFT touchscreen
Resolution	320 x 480 pixels 3:2 ratio (~206 ppi density)
Colors	256K colors
Battery and Keyboard
Battery	Removable Li-Ion 1500 mAh
Physical keyboard	QWERTY
Interfaces
Audio output	3.5mm jack
Bluetooth	version 2.1, A2DP, EDR
DLNA	No
GPS	Yes, with A-GPS
Infrared port	No
NFC	No
USB	microUSB 2.0
WLAN	Wi-Fi802.11b/g, Wi-Fi Direct, hotspot