You know how to update your android phone last android version. Update software you fix specific issues, update application and update android version on your phone.
It is simple, Now you can follow the steps below to update your android phone. (Without root)

  • : Go to menu  > Settings
  • : Select About phone
  • : Select Software update > update
  • : Select You want Download  Wi-Fi or 3G Network
  • : Select Ok
  • : Now find update select Download
  • : Select Install 
  • : Select Ok now you phone will be rebooted ( you don't press any key )
  • : Select Ok Now your phone updated last android version. 

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  1. Not root and update .good post

  2. i have samung galaxy s3 made in korea GT-i9300 i want to update its firemware help me please