How Flashing help:
1- If your Samsung gadgets has been stuck at Android or Samsung Logo and Hard Reset (Power + Volume up + Menu) fails.
2- If Application are installing of its own.
3- When you had forget the Password/Pattern.
4- If you are trying to unroot or rooting fails.
5- After installing Custom ROM on Samsung gadgets, if performance suffers.

ALSO READ: Top (10) easy steps to Improve Your Laptop Battery Life ==> http:///bPPzq

Software & Tools needed:
1- Installation of USB driver on PC.
2- Latest Odin tool
3- Samsung Flash File download.

*Samsung Android device must be atleast 30 percent charge.
*It will cost data.
How to Flash Samsung Mobiles & Tablets:1- To make communication between Odin tool & Samsung Mobile, you have to install driver.
2- Download Samsung Flash File and unzip it. (Flash file extension: .tar.md5)
3- Enable USB debugging. (Setting > Developer option > USB debugging)
4- Switch off your Android device.
5- Now, switch on the mobile by pressing (Power+Volume down+Menu). Phone will boot in Download mode.
6- Now, PressVolume upto enter download mode.
7- Unzip the Odin tool and run Odin tool. (.exe application)
8- Odin tool will be launched.
9- Now, Connect your Samsung Mobile to the PC using USB cable. (Message box on tool will display Added, if you had installed driver)
10- Now, Click on PDA (or AP in other version) and assign the path of Flash file.
11- Click on start to initiate flashing.
12- After flashing is completed, if your Samsung Mobile or Tablet stuck at Logo.
13- Then you had to reset the device once.

ALSO READ: Top (10) easy steps to Improve Your Laptop Battery Life ==> http:///bPPzq

To upgrade your samsung or flash it is very easy, just download the file and the software for flashing and follow the procedures, u can get them here flash and upgrade your samsung phone with odin