How to Hard/Factory Reset | Bypass screen lock on Samsung GT-I5801?

Overview

Samsung GT-I5801 runs on the processor 667MHz Samsung S5P6422 with Single-core . It has internal memory 512MB and RAM (RAM) 256MB and supports microSD, up to 32 GB (dedicated slot), 1 GB included. This model also has 3.5mm jack, supports Bluetooth version 3.1, A2DP and GPS technology Yes, with A-GPS . The USB port supports microUSB 2.0 and Wi-Fi 802.11 b/g/n, hotspot (Android 2.2). Its technical characteristics are also the screen size 3.2 inches (~46.7% screen-to-body ratio), the resolution 240 x 400 pixels (~146 ppi pixel density) and the type TFT capacitive touchscreen.

SpecificationSamsung GT-I5801Galaxy Apollo

Model and Features
Model	Samsung GT-I5801
Series	Galaxy Apollo
Release Date	July, 2010
Body Depth	12.6 mm (0.50 in)
Body Dimensions	113.5 x 55 mm (4.47 x 2.17 in)
Body Weight	113 g (3.99 oz)
OS	Android 2.1 (Eclair), upgradable to 2.2 (Froyo)
Hardware
CPU	667MHz Samsung S5P6422
CPU Cores	Single-core
RAM	256MB
Internal Memory	512MB
External Memory	microSD, up to 32 GB (dedicated slot), 1 GB included
Network and Data
SIM	1 Mini-SIM
2G bands	GSM 850/900/1800/1900MHz
3G bands	HSDPA 900/2100MHz
4G bands	-
5G bands	-
Technology Data	GPRS/EDGE
Display
Screen size	3.2 inches (~46.7% screen-to-body ratio)
Type	TFT capacitive touchscreen
Resolution	240 x 400 pixels (~146 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 3.1, A2DP
DLNA	-
GPS	Yes, with A-GPS
Infrared port	-
NFC	-
USB	microUSB 2.0
WLAN	Wi-Fi 802.11 b/g/n, hotspot (Android 2.2)