|Download Odin tool||Click here|
|Download Samsung Driver||Click here|
|All Samsung firmware||Click here|
[ ] Look at to me Once:
Caution: If you are going to flash or upgrade your phone. Firstly take a backup of your phone, because after flashing all the data will erase (wipe out). However, you can copy your data to an SD card or computer, but you can’t make a backup of SMS, Call history and Browser bookmark, backup. if you want to learn, how to make a full backup of the phone. Follow the tutorial, the link is given below.