How to Hard/Factory Reset | Bypass screen lock on Samsung SCH-J021?

All tutorials for Samsung SCH-J021

How to Hard Reset on Samsung SCH-J021?

Make sure you turned off your phone. Hold down the Power key, the Volume Up key and the Home Button for a while. Wait until the Samsung or Android logo appears. Release all the buttons. Now, you'll see...

How to Factory Reset through menu on Samsung SCH-J021?

The device must be on. Go to the "Settings". In Settings choose "Backup & Reset". After that, go for "Factory data reset". Press "Reset device" to finish...

How to Flash Stock Firmware on Samsung SCH-J021?

First, download to your PC: Odin3 latest version, Firmware, Samsung Kies, and Samsung Drivers: Samsung Kies Odin3 latest version Samsung Drivers With the phone turned off press and hold the Volume down key, the...

Top 5 secret codes for Samsung SCH-J021

The first is :*#7353*#. Use this code to open the Quick Test menu that allows you to test different options of your device. The second is :*#0*#. Use this code to enter the General Test Mode where you can test...

Enable Developer mode & USB debugging on Samsung SCH-J021

Turn on your device and open "Settings". In Settings select "About Phone". Click on "Build number" seven times and go back to "Settings". Finally, select Developer...

How to take screenshot on Samsung SCH-J021?

The device must be switched on. Choose what you want to capture. Then press the Power key and the Volume down button at one time. Great! Now you have a new screenshot.

Overview

Samsung SCH-J021 runs on the processor 1,5Ghz Qualcomm Snapdragon S4 MSM8960 with Dual-core . It has internal memory 32GB and RAM (RAM) 2GB and supports microSD, up to 64 GB (dedicated slot). This model also has 3.5mm jack, supports Bluetooth version 4.0, GAP, SSP, HSP, HFP1.5, A2DP, SPP, OPP, PBAP, MAP, AVRCP 1.3, HID and GPS technology Yes, with A-GPS, GLONASS . The USB port supports micro-USB 2.0 MHL 2, OTG and Wi-Fi 802.11 a/b/g/n. Its technical characteristics are also the screen size 4.8 inches (~64% screen-to-body ratio), the resolution 720 x 1280 pixels (~306 ppi pixel density) and the type Super AMOLED Plus capacitive touchscreen.

SpecificationSamsung SCH-J021Galaxy S3

Model and Features
Model	Samsung SCH-J021
Series	Galaxy S3
Release Date	November, 2012
Body Depth	9.4 mm (0.37 in)
Body Dimensions	139 x 71 mm (5.47 x 2.80 in)
Body Weight	141 g (4.97 oz)
OS	Android 4.0.4 (Ice Cream Sandwich)
Hardware
CPU	1,5Ghz Qualcomm Snapdragon S4 MSM8960
CPU Cores	Dual-core
RAM	2GB
Internal Memory	32GB
External Memory	microSD, up to 64 GB (dedicated slot)
Network and Data
SIM	1 Micro-SIM
2G bands	GSM 850/900/1800/1900MHz
3G bands	HSDPA 850/900/1900/2100MHz
4G bands	LTE 800, 1500MHz
5G bands	-
Technology Data	GPRS/EDGE
Display
Screen size	4.8 inches (~64% screen-to-body ratio)
Type	Super AMOLED Plus capacitive touchscreen
Resolution	720 x 1280 pixels (~306 ppi pixel density)
Colors	16M colors
Battery and Keyboard
Battery	Removable Li-Ion 2100 mAh
Physical keyboard	-
Interfaces
Audio output	3.5mm jack
Bluetooth	version 4.0, GAP, SSP, HSP, HFP1.5, A2DP, SPP, OPP, PBAP, MAP, AVRCP 1.3, HID
DLNA	Yes
GPS	Yes, with A-GPS, GLONASS
Infrared port	-
NFC	Yes
USB	micro-USB 2.0 MHL 2, OTG
WLAN	Wi-Fi 802.11 a/b/g/n